Precision Digital PD8-6001-7H7, PD8-6001-6H0, PD8-6001-7H0, PD8-6001-6H7 User manual

ProtEX-MAX PD8-6001 Explosion-Proof
Feet & Inches Meter Instruction Manual

Process

• 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs

USB Install

• Feet & Inches Display Ideal for Level Applications

• Isolated 24 VDC @ 25 mA Transmitter Power Supply

• Multi-Pump Alternation Control

• Display a Single Input in Two Different Scales (e.g. Height & Volume)

• Signal Input Conditioning for Oddly Shaped and Round Horizontal Tanks

• 32-Point, Square Root, or Exponential Linearization

• Modern, Sleek and Practical Enclosure

• Display Mountable at 0°, 90°, 180°, & 270° Degrees

• Explosion-Proof, IP68, NEMA 4X Enclosure

• SafeTouch® Through-Glass Button Programming

• Flanges for Wall or Pipe Mounting

• Superluminous Sunlight Readable Display

• Free USB Programming Software & Cable

• 4 Relays + Isolated 4-20 mA Output Option

PRECISION DIGITAL CORPORATION

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

CAUTION: Read complete

instructions prior to installation

and operation of the meter.

WARNING: Risk of electric

shock or personal injury.

Warning!

• This product is not recommended for life support applications or
applications where malfunctioning could result in personal injury or
property loss. Anyone using this product for such applications does so at
his/her own risk. Precision Digital Corporation shall not be held liable for
damages resulting from such improper use.

• Failure to follow installation guidelines could result in death or serious
injury. Make sure only qualified personnel perform the installation.

• Never remove the instrument cover in explosive environments when the
circuit is live.

• Cover must be fully engaged to meet flameproof/explosion-proof
requirements.

• Information in this manual supersedes all enclosure, compliance, and

agency approval information included in additional product manuals
included with this product.

!

Disclaimer

The information contained in this document is subject to change without notice.
Precision Digital makes no representations or warranties with respect to the contents
hereof and specifically disclaims any implied warranties of merchantability or fitness
for a particular purpose.

Limited Warranty

Precision Digital Corporation warrants this product against defects in material or
workmanship for the specified period under “Specifications” from the date of
shipment from the factory. Precision Digital’s liability under this limited warranty shall
not exceed the purchase value, repair, or replacement of the defective unit.

Registered Trademarks

MeterView® Pro is a registered trademark of Precision Digital Corporation. Modbus® is a

Find Quality Products Online at: [email protected]

Registered Trademark of Schneider Automation Inc. All other trademarks mentioned in
this document are the property of their respective owners.

© 2018 Precision Digital Corporation. All rights reserved.

2

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Table of Contents

Table of Contents -------------------------------------------3
Table of Figures ---------------------------------------------4
Introduction --------------------------------------------------4
Ordering Information --------------------------------------5
Specifications ------------------------------------------------5

General ------------------------------------------------------------- 5
Process Input ---------------------------------------------------- 6
Relays -------------------------------------------------------------- 6
Isolated 4-20 mA Transmitter Output -------------------- 7
Serial Communications --------------------------------------- 7
Digital Inputs & Outputs -------------------------------------- 7
MeterView Pro --------------------------------------------------- 7
Product Ratings and Approvals; -------------------------- 8

Compliance Information ----------------------------------9

Safety --------------------------------------------------------------- 9
Electromagnetic Compatibility ----------------------------- 9

Safety Information ---------------------------------------- 10
Installation -------------------------------------------------- 10

Unpacking ------------------------------------------------------- 10
Pre-Installed Conduit/Stopping Plug ------------------- 11
Mounting -------------------------------------------------------- 11
Cover Jam Screw --------------------------------------------- 11
Transmitter Supply Voltage Selection (P+, P-) ----- 11
Connections ---------------------------------------------------- 12

Required & Factory Wired Connection ---------------- 12
Connectors Labeling --------------------------------------- 13
Power Connections ---------------------------------------- 13
Signal Connections ---------------------------------------- 14
Serial Communications Connections ------------------ 15

Three Wire Connections ------------------------------ 15
Using PROVU Serial Adapters ---------------------------- 17
Relay Connections ----------------------------------------- 18
Switching Inductive Loads -------------------------------- 18
F4 Digital Input Connections ----------------------------- 19
4-20 mA Output Connections ---------------------------- 19
Analog Output Transmitter Power Supply ------------ 19
Interlock Relay Feature ----------------------------------- 19
Digital I/O Connections ------------------------------------ 20
External Switch Contacts --------------------------------- 20

Setup and Programming ------------------------------- 21

Overview --------------------------------------------------------- 21
SafeTouch
Front Panel Buttons and Status LED Indicators --- 22
MeterView

MeterView Pro Installation ------------------------------- 23

Display Functions & Messages -------------------------- 24
Main Menu ------------------------------------------------------ 26
Setting Numeric Values ------------------------------------ 26
Setting Up the Meter (setup) ------------------------------ 27

Setting the Input Signal (Input) ------------------------ 27
Setting the Input Units or Custom Tags (units)---- 28
Setting the Decimal Point (dEc pt) -------------------- 28
Programming the Meter (prog) ------------------------- 29

®

Buttons ----------------------------------------- 21

®

Pro Software ---------------------------------- 23

Program Menu for Single Scale Process --------- 29

Program Menu for Dual-Scale Level Applications

--------------------------------------------------------- 29

Multi-Point Calibration & Scaling -------------------- 29
Scaling the Meter (SCALE) ----------------------------- 30
Dual-Scale for Level Application -------------------- 30
Calibrating the Meter with External Source (Cal) 31

Setting the Display Parameter & Intensity (dsplay) 32

Setting the Relay Operation (relay) -------------------- 33

Setting the Relay Action ----------------------------------- 33
Programming Set and Reset Points -------------------- 33
Setting Fail-Safe Operation ------------------------------ 34
Programming Time Delay --------------------------------- 34
Relay Action for Loss of 4-20 mA Input (Loop Break)

------------------------------------------------------------------- 34

Relay and Alarm Operation Diagrams ----------------- 34

High Alarm Operation (Set > Reset) ------------------- 34
Low Alarm Operation (Set < Reset) -------------------- 34
High Alarm with Fail-Safe Operation (Set > Reset) 35
Low Alarm with Fail-Safe Operation (Set < Reset) - 35
Pump Alternation Control Operation ------------------- 36
Relay Sampling Operation -------------------------------- 36
Signal Loss or Loop Break Relay Operation --------- 37
Time Delay Operation ------------------------------------- 37

Relay Operation Details------------------------------------- 38

Overview ------------------------------------------------------ 38
Relays Auto Initialization ---------------------------------- 38
Fail-Safe Operation ----------------------------------------- 38
Front Panel LEDs ------------------------------------------- 38
Latching and Non-Latching Relay Operation -------- 39
Non-Latching Relay (Auto) ------------------------------- 39
Non-Latching Relay (A-man) -------------------------- 39
Latching Relay (LatcH) ------------------------------------ 39
Latching Relay (Lt-Clr) ---------------------------------- 39
Acknowledging Relays ------------------------------------ 40
Pump Alternation Control Applications (Altern) --- 40
Setting Up the Interlock Relay (Force On) Feature 42

Scaling the 4-20 mA Analog Output (Aout) ----------- 42
Reset Menu (reset) ------------------------------------------ 43
Control Menu (Contrl) -------------------------------------- 43
Setting Up the Password (pass) ------------------------- 43

Protecting or Locking the Meter ------------------------- 43
Making Changes to a Password Protected Meter -- 44
Disabling Password Protection -------------------------- 44

Advanced Features Menu ---------------------------------- 45

Advanced Features Menu & Display Messages ---- 45
Noise Filter (filter) --------------------------------------- 47
Noise Filter Bypass (bypass) ---------------------------- 47
Rounding Feature (round)-------------------------------- 47
Modbus RTU Serial Communications (serial)----- 47
Serial Communications Overview ---------------------- 48
Select Menu (SElect) ------------------------------------- 49
Signal Input Conditioning (Functn) -------------------- 49
Low-Flow Cutoff (CutofF) -------------------------------- 51
Analog Output Programming (AoutPr) ---------------- 51
Programmable Function Keys User Menu (user) -- 51
Internal Source Calibration (ICAL) ---------------------- 53

Meter Operation ------------------------------------------- 54

Front Panel Buttons Operation--------------------------- 54
SafeTouch

®

Buttons ----------------------------------------- 54

3

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

F4 Operation --------------------------------------------------- 55
Maximum/Minimum Readings ---------------------------- 55

Troubleshooting ------------------------------------------ 56

Diagnostics Menu (diag) ----------------------------------- 56

Determining Software Version -------------------------- 56

Reset Meter to Factory Defaults ------------------------- 56

Factory Defaults & User Settings ----------------------- 57

Troubleshooting Tips---------------------------------------- 58

Service ------------------------------------------------------- 59
Mounting Dimensions ----------------------------------- 59
EU Declaration of Conformity ------------------------ 61

Table of Figures

Figure 1. Transmitter Supply Voltage Selection ......... 11

Figure 2: Integrated ProVu Required Connections ..... 12

Figure 3. Connector Labeling for Fully Loaded PD6001

................................................................................. 13

Figure 4. Power Connections ....................................... 13

Figure 5. Transmitters Powered by Internal Supply ... 14
Figure 6. Transmitter Powered by Ext. Supply or Self-

Powered .................................................................. 14

Figure 7. Voltage Input Connections ........................... 14

Figure 8: ProtEX-MAX Connections to a Serial

Converter ................................................................ 15

Figure 9. Three-Wire RS485 Connection ..................... 15

Figure 10: RS-485 Wiring .............................................. 16

Figure 11: RS-485 Two-Wire Multi-Drop Wiring .......... 17

Figure 12. Relay Connections ...................................... 18

Figure 13. AC and DC Loads Protection ...................... 18

Figure 14. Low Voltage DC Loads Protection ............. 18

Figure 15. F4 Digital Input Connections ...................... 19

Figure 16. 4-20 mA Output Connections ..................... 19

Figure 17. Interlock Connections ................................. 19

Figure 18: Digital I/O Connections ............................... 20

Figure 19. Acknowledge Relays w/Function Key or

Digital Input ............................................................ 40

Figure 20: General Four-Wire Network Connection ... 48

Figure 21: General Two-Wire Network Connection .... 48

Figure 22: Enclosure Dimensions – Front View .......... 59

Figure 23: Enclosure Dimensions – Side Cross Section

View ........................................................................ 59

Introduction

The ProtEX-MAX PD8-6001 explosion-proof feet & inches meter offers all the functionality of the
ProVu PD6001 as a fully FM, CSA, ATEX, and IECEx approved explosion-proof product. Its
superluminous LED digits make it easily readable in smoke, dust, fog, and, with the optional
SunBright® display, even direct sunlight. It accepts a process current (4-20 mA) or process
voltage (0-5V, 1-5V, etc.) signal and displays it on a dual-line, 6-digit SunBright® sunlight
readable display. t is ideal for level applications requiring an easy-to-understand display, as it
shows feet, inches, and fractions of an inch.

The meter includes a 24 VDC power supply to drive the transmitter and can be equipped with
up to four internal relays and a 4-20 mA output. The PD8-6001 can be programmed and
operated without opening the housing by using the built-in SafeTouch® through-glass buttons or
the RS485 serial communication port with free Modbus® protocol.

The analog input can be scaled to display the process in two different scales. The main display
can indicate level in feet and inches with printed feet and inches designations, and the second
display could be used to indicate some other scale, such as the volume in gallons or liters.

The basic model includes an isolated 24 VDC transmitter power supply that can be used to
power the input transmitter or other devices. An additional isolated 24 VDC power supply is
included with the 4-20 mA output option. A digital input is standard.

A fully loaded PD6001 meter has the following: four SPDT relays, 4-20 mA output, and two 24
VDC power supplies. The 4-20 mA isolated output, Modbus RTU serial communications, and
digital I/O make the PD8-6001 an excellent addition to any hazardous area level monitoring or
control system.

4

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

85-265 VAC Model

12-24 VDC Model

Options Installed

PD8-6001-6H0

PD8-6001-7H0

No options

PD8-6001-6H7

PD8-6001-7H7

4 relays & 4-20 mA output

*Model number for replacement option card.

Model

Description

PDA1232

RS-232 serial adapter

PDA1485

RS-485 serial adapter

PDA7485-I

RS-232 to RS-422/485 isolated converter

PDA8232-N

USB to RS-232 non-isolated converter

PDA8485-I

USB to RS-422/485 isolated converter

PDX6901

Suppressor (snubber): 0.01 µF/470 , 250 VAC

Display

Line 1: 0.60" (15 mm) high, red LEDs
separated by feet and inches
designations
Line 2: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999), with
lead zero blanking

Display
Intensity

Eight user selectable intensity levels

Display
Update Rate

5/second (200 ms)

Overrange

Display flashes 999999

Underrange

Display flashes -99999

Display
Assignment

Display lines 1 & 2 may be assigned to
PV1, PV2, PCT, max/min, max & min,
set points, units (line 2 only), or Modbus
input.

Programming
Methods

Four front panel buttons, digital inputs, PC
and MeterView Pro software, or Modbus
registers.

Noise Filter

Programmable from 2 to 199 (0 will
disable filter)

Filter Bypass

Programmable from 0.1 to 99.9% of
calibrated span

Recalibration

All ranges are calibrated at the factory.
Recalibration is recommended at least
every 12 months.

Max/Min
Display

Max/min readings reached by the
process are stored until reset by the
user or until power to the meter is turned
off.

Password

Three programmable passwords restrict
modification of programmed settings.

Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and
editing set/reset points
Pass 3: Restricts all programming, function keys, and
digital inputs.

Power
Options

85-265 VAC 50/60 Hz, 90-265 VDC, 20
W max or 12-24 VDC  10%, 15 W max
Powered over USB for configuration
only.

Isolated
Transmitter
Power Supply

Terminals P+ & P-: 24 VDC  10%.
selectable for 24, 10, or 5 VDC output
supply (internal jumper J4). All models
transmitter supply rated @ 25mA max.

Non-Volatile
Memory

All programmed settings are stored in
non-volatile memory for a minimum of
ten years if power is lost.

Fuse

Required external fuse: UL Recognized,
5 A max, slow blow; up to 6 meters may
share one 5 A fuse

Normal Mode
Rejection

Greater than 60 dB at 50/60 Hz

Isolation

4 kV input/output-to-power line
500 V input-to-output or output-to-P+
supply

Overvoltage
Category

Installation Overvoltage Category II:
Local level with smaller transient
overvoltages than Installation
Overvoltage Category III.

Environmental

T6 Class operating temperature range
Ta = -40 to 60°C

T5 Class operating temperature range
Ta = -40 to 65°C

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Ordering Information

SunBright Display Models

WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Accessories

Specifications

Except where noted all specifications apply to operation at +25°C.

General

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

5

Max Power
Dissipation

Maximum power dissipation limited to

15.1 W.

Connections

Screw terminals accept 12 to 22 AWG
wire

Enclosure

Explosion-proof die cast aluminum with
glass window, corrosion resistant epoxy
coating, color: blue.
NEMA 4X, 7, & 9, IP68.
Default conduit connections: Four ¾"
NPT threaded conduit openings and
two ¾" NPT metal conduit plugs with 12
mm hex key fitting installed. Additional
conduit opening configurations may be
available; verify quantity and sizes on
specific device labeling during
installation.

Mounting

Four slotted flanges for wall mounting
or NPS 1½" to 2½" or DN 40 to 65 mm
pipe mounting. See Mounting
Dimensions on page 59.

Tightening
Torque

Screw terminal connectors: 5 lb-in (0.56
Nm)

Overall
Dimensions

6.42" x 7.97" x 8.47" (W x H x D)
(163 mm x 202 mm x 215 mm)

Approximate
Shipping Weight

16.0 lbs (7.26 kg)

Warranty

3 years parts & labor

Inputs

Field selectable:
0-20, 4-20 mA, 10 V (0-5, 1-5, 0-10 V),
Modbus PV (Slave)

Accuracy

±0.03% of calibrated span ±1 count,
square root & programmable exponent
accuracy
range: 10-100% of calibrated span

Temperature Drift

0.005% of calibrated span/C max from
0 to 65C ambient,

0.01% of calibrated span/C max from ­40 to 0C ambient

Signal Input
Conditioning

Linear or round horizontal tank volume
calculation

Multi-Point
Linearization

2 to 32 points for PV or PV1
2 to 8 points for PV2 (Dual-scale Level
feature)

Round H Tank

Diameter & Length: 999.999 inch or cm
calculates volume in gallons or liters
respectively.

Low-Flow
Cutoff

0FT0IN(0/16 or 0/8) - 99FT11IN(15/16 or 7/8)
(0FT0IN(0/16 or 0/8) disables cutoff function)

Decimal Point

Up to five decimal places or none (PV2
only):

d.ddddd, d.dddd, d.ddd, d.dd, d.d,

or dddddd

Calibration
Range

Input
Range

Minimum Span
Input 1 & Input 2

4-20 mA

0.15 mA

10 V

0.01 V

An error message will appear if the input
1 and input 2 signals are too close
together.

Input
Impedance

Voltage ranges: greater than 500 k
Current ranges: 50 - 100  (depending on

resettable fuse impedance)

Input
Overload

Current input protected by resettable
fuse, 30 VDC max.
Fuse resets automatically after fault is
removed.

F4 Digital Input
Contacts

3.3 VDC on contact. Connect normally
open contacts across F4 to COM.

F4 Digital Input
Logic Levels

Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC

HART
Transparency

Analog input will not interfere with
existing HART communications on the
wired 4-20 mA signal

Rating

4 SPDT (Form C) internal and/or 4
SPST (Form A) external; rated 3 A @ 30
VDC and 125/250 VAC resistive load;
1/14 HP (≈ 50 W) @ 125/250 VAC for
inductive loads

Noise
Suppression

Noise suppression is recommended for
each relay contact switching inductive
loads; see page 18 for details.

Deadband

0-100% of span, user programmable

High Or Low
Alarm

User may program any alarm for high or
low trip point.
Unused alarm LEDs and relays may be
disabled (turn off).

Relay
Operation

Automatic (non-latching) and/or manual
reset
Latching (requires manual acknowledge)
with/without clear
Pump alternation control (2 to 4 relays)
Sampling (based on time)
Off (disable unused relays and enable
Interlock feature)
Manual on/off control mode

Time Delay

0 to 999.9 seconds, on & off relay time
delays
Programmable and independent for
each relay

Fail-Safe
Operation

Programmable and independent for
each relay.

Note: Relay coil is energized in non-

alarm condition. In case of power
failure, relay will go to alarm state.

Auto
Initialization

When power is applied to the meter,
relays will reflect the state of the input to
the meter.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Relays

Process Input

Find Quality Products Online at: [email protected]

6

www.GlobalTestSupply.com

Relay Reset

User selectable via front panel buttons
or digital inputs

1. Automatic reset only (non-latching),
when the input passes the reset
point.

2. Automatic + manual reset at any time
(non-latching)

3. Manual reset only, at any time
(latching)

4. Manual reset only after alarm
condition has cleared (latching)

Note: Front panel button or digital input

may be assigned to acknowledge
relays programmed for manual
reset.

Output Source

Process variable (PV), max, min, set
points 1-8, Modbus input, or manual
control mode

Scaling Range

1.000 to 23.000 mA for any display range

Calibration

Factory calibrated: 4.000 to 20.000 = 4-20
mA output

Analog Out
Programming

23.000 mA maximum for all parameters:

Overrange, underrange, max, min, and
break

Accuracy

± 0.1% of span ± 0.004 mA

Temperature
Drift

0.4 µA/C max from 0 to 65C ambient,

0.8 µA/C max from -40 to 0C ambient

Note: Analog output drift is separate from input
drift.

Isolated
Transmitter
Power Supply

Terminals I+ & R: 24 VDC  10%. May be
used to power the 4-20 mA output or
other devices. Refer to Figure 16 on page

19. All models @ 25mA max.

External Loop
Power Supply

35 VDC maximum

Output Loop
Resistance

Power
supply

Minimum

Maximum
24 VDC

10 

700 

35 VDC
(external)

100 

1200 

Compatibility

EIA-485

Connectors

Removable screw terminal connector

Max Distance

3,937' (1,200 m) max

Status Indication

Separate LEDs for Power (P), Transmit
(TX), and Receive (RX)

Slave Id

1 – 247 (Meter address)

Baud Rate

300 – 19,200 bps

Transmit
Time Delay

Programmable between 0 and 199 ms

Data

8 bit (1 start bit, 1 or 2 stop bits)

Parity

Even, Odd, or None with 1 or 2 stop bits

Byte-To-Byte
Timeout

0.01 – 2.54 second

Turn Around
Delay

Less than 2 ms (fixed)

Note: Refer to the PROVU® Modbus Register Tables located
at www.predig.com for details.

Channels

4 digital inputs & 4 digital outputs

Digital Input
Logic High

3 to 5 VDC

Digital Input
Logic Low

0 to 1.25 VDC

Digital Output
Logic High

3.1 to 3.3 VDC

Digital Output
Logic Low

0 to 0.4 VDC

Source
Current

10 mA maximum output current

Sink
Current

1.5 mA minimum input current

+5 V
Terminal

To be used as pull-up for digital inputs
only.
Connect normally open pushbuttons
across +5 V & DI 1-4.

WARNING

DO NOT use +5 V
terminal (pin 1) to power
external devices.

Function
Assignment

The on-board digital inputs (1-4) are
designed to mimic the behavior of the
front panel buttons (Menu, F1, F2, &
F3).
If you wish to change their behavior, re­assign F1-F3 to the desired function,
then change the corresponding digital
input to match.

System
Requirements

Microsoft® Windows® XP/Vista/7/8/10

Communications

USB 2.0 (Standard USB A to Micro USB
B)

Configuration

Configure device settings one at a time

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Isolated 4-20 mA Transmitter Output

Digital Inputs & Outputs

MeterView Pro

Serial Communications

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

7

FM

Enclosure: Type 4X; IP66
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1, T5/T6
Class I, Zone 1, AEx d, IIC Gb T5/T6
Zone 21, AEx tb IIIC T90°C; Ta -40°C to +65°C
T6 Ta = -40°C to +60°C; T5 Ta = -40°C to +65°C
Certificate Number: 3047283

CSA

Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1
Class I Zone 1 Ex d IIC
Zone 21 Ex tb IIIC T90°C

-40°C < Tamb. < +60° C; Temperature Code T6

-40°C < Tamb. < +65° C; Temperature Code T5
Enclosure Type 4X & IP66
Certificate Number: 2531731

ATEX

II 2 G D

Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -40°C to +*°C
*T6 = -40°C to +60°C
*T5 = -40°C to +65°C
Certificate number: Sira 12ATEX1182

IECEx

Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -40°C to +*°C
*T6 = -40°C to +60°C
*T5 = -40°C to +65°C
Certificate Number: IECEx SIR 12.0073

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Product Ratings and Approvals;

Special Conditions for Safe Use:

Use suitably certified and dimensioned cable entry device and/or plug. The equipment shall be
installed such that the supply cable is protected from mechanical damage. The cable shall not
be subjected to tension or torque. If the cable is to be terminated within an explosive
atmosphere, then appropriate protection of the free end of the cable shall be provided. Cable
must be suitable for 90°C.

Year of Construction

This information is contained within the serial number with the first four digits representing the
year and month in the YYMM format.

For European Community: The ProtEX-MAX must be installed in accordance with the ATEX
directive 94/9/EC, and the product certificate Sira 12ATEX1182.

Find Quality Products Online at: [email protected]

8

www.GlobalTestSupply.com

UL & c-UL Listed

USA & Canada
UL 508 Industrial Control Equipment

UL File Number

E160849

Front Panel

UL Type 4X, NEMA 4X, IP65; panel gasket provided

Low Voltage
Directive

EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use

Emissions

EN 55022:2010
Class A ITE emissions requirements

Radiated
Emissions

Class A

AC Mains Conducted
Emissions

Class A

Immunity

EN 61326-1:2013
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard

RFI - Amplitude Modulated

80 -1000 MHz 10 V/m 80% AM (1 kHz)

1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)

2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)

Electrical Fast Transients

±2kV AC mains, ±1kV other

Electrostatic
Discharge

±4kV contact, ±8kV air

RFI - Conducted

10V, 0.15-80 MHz, 1kHz 80% AM

AC Surge

±2kV Common, ±1kV Differential

Surge

1KV (CM)

Power-Frequency
Magnetic Field

30 A/m 70%V for 0.5 period

Voltage Dips

40%V for 5 & 50 periods
70%V for 25 periods

Voltage
Interruptions

<5%V for 250 periods

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Compliance Information

Safety

Electromagnetic Compatibility

Note:

Testing was conducted on PD6000 meters installed through the covers of grounded metal enclosures
with cable shields grounded at the point of entry representing installations designed to optimize EMC
performance.

Declaration of Conformity available at www.predig.com

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

9

WARNINGS

• Read complete instructions prior to installation and operation of the instrument.

• Installation and service should be performed only by trained service personnel. Service

requiring replacement of internal sub-components must be performed at the factory.

• Disconnect from supply before opening enclosure. Keep cover tight while circuits are alive.
Conduit seals must be installed within 18" (450mm) of the enclosure or within 2" (50mm) for
Zone installations.

• Verify that the operating atmosphere of the instrument is consistent with the appropriate
hazardous locations certifications.

• If the instrument is installed in a high voltage environment and a fault or installation error
occurs, high voltage may be present on any lead

• Read all product labels completely and follow all instructions and requirements listed on the
labels for installation or service.

WARNING

Disconnect from supply before opening enclosure. Keep
cover tight while circuits are alive. Conduit seals must be
installed within 18" (450mm) of the enclosure or within 2"
(50mm) for Zone installations.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Safety Information

Installation

Install in accordance with applicable local and national regulations (e.g. NEC).

For Installation in USA: The ProtEX-MAX must be installed in accordance with the National Electrical
Code (NEC) NFPA 70.

For Installation in Canada: The ProtEX-MAX must be installed in accordance with the Canadian
Electrical Code CSA 22.1. All power supplies below 36 V and input circuits must be derived from a CSA
Approved Class 2 source.

For European Community: The ProtEX-MAX must be installed in accordance with the ATEX directive
94/9/EC and the product certificate Sira 12ATEX1182.

Wiring connectors are accessed by opening the enclosure. To access electrical connectors, remove the 2
captive screws and then remove the electronics module. Connectors are on the rear of the electronics
module.

Unpacking

Remove the instrument from packing box. Inspect the packaging and contents for damage. Report
damages, if any, to the carrier.

If any part is missing or the instrument malfunctions, please contact your supplier or the factory for
assistance.

Find Quality Products Online at: [email protected]

10

www.GlobalTestSupply.com

WARNING

In hazardous areas, conduit and conduit/stopping plugs require
the application of non-setting (solvent free) thread sealant. It is
critical that all relevant hazardous area guidelines be followed
for the installation or replacement of conduit or plugs.

WARNING

Do not attempt to loosen or remove flange bolts
while the instrument is in service.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Pre-Installed Conduit/Stopping Plug

The PD8-6000 is supplied with two pre-installed conduit plugs for installations that do not require the use
of all conduit entries. The conduit/stopping plugs include an internal 12mm hexagonal socket recess for
removal. The pre-installed plugs and their installation are included in the hazardous area approvals for
the PD8 Series enclosure.

Mounting

The ProtEX-MAX has four slotted mounting flanges that should be used for pipe mounting or wall
mounting. Refer to Mounting Dimensions, page 59 for details.

Cover Jam Screw

The cover jam screw should be properly installed once the instrument has been wired and tested in a
safe environment. The cover jam screw is intended to prevent the removal of the instrument cover in a
flameproof environment without the use of tools. Using a M2 hex wrench, turn the screw clockwise until
the screw contacts the aluminum enclosure. Turn the screw an additional 1/4 to 1/2 turn to secure the
cover. Caution: Excess torque may damage the threads and/or wrench.

Transmitter Supply Voltage Selection (P+, P-)

All meters, including models equipped with the 12-24 VDC power option, are shipped from the factory
configured to provide 24 VDC power for the transmitter or sensor.

If the transmitter requires 5 or 10 VDC excitation, the internal jumper J4 must be configured
accordingly.

To access the voltage selection jumper:

1. Remove all the wiring connectors.

2. Unscrew the back cover.

3. Slide out the back cover by about 1 inch.

4. Configure the J4 jumper, located behind the input signal connector, for the desired excitation
voltage as shown.

Figure 1. Transmitter Supply Voltage Selection

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

11

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

WARNINGS

• Static electricity can damage sensitive components.

• Observe safe handling precautions for static-sensitive components.

• Use proper grounding procedures/codes.

• If the instrument is installed in a high voltage environment and a

fault or installation error occurs, high voltage may be present on
any lead or terminal.

• Follow all fusing and wiring precautions requirements for the
instrument integrated to the PD8 Series model number being
connected.

WARNING

Observe all safety regulations. Electrical wiring should be performed
in accordance with all agency requirements and applicable national,
state, and local codes to prevent damage to the meter and ensure
personnel safety.

Connections

To access the connectors, remove the enclosure cover and unscrew the two captive screws that fasten
the electronics module. Signal connections are made to de-pluggable connectors on the back of the
electronics module.

Some connectors may be provided already connected. These connections are required for proper
operation of the ProtEX-MAX, and should not be removed unless instructed to by this manual.

Wires marked as being used for testing purposes should be removed.
Grounding connections are made to the two ground screws provided on the base – one internal and one

external.
After all connections have been completed and verified, apply power to the unit.

Required & Factory Wired Connection

The ProtEX-MAX comes with a pre-wired connection. This connection is detailed below, and must be
maintained in order for the instrument to function properly.

Find Quality Products Online at: [email protected]

12

Figure 2: Integrated ProVu Required Connections

www.GlobalTestSupply.com

Warning!

Do not disconnect the RJ45 M-LINK connector cable.
Otherwise the instrument will not function properly.

AC or DC

POWER

Required External Fuse:

5 A max, 250 V Slow Blow

POWER

+

-

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Connectors Labeling

The connectors’ label, affixed to the meter, shows the location of all connectors available with requested
configuration.

Figure 3. Connector Labeling for Fully Loaded PD6001

Power Connections

Power connections are made to a two-terminal connector labeled POWER on Figure 3 on page 13. The
meter will operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring
convention.

Figure 4. Power Connections

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

13

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Signal Connections

Signal connections are made to a six-terminal connector labeled
SIGNAL on Figure 3. The COM (common) terminal is the return for the 4-20 mA and the 10 V input
signals.

Current and Voltage Connections

The following figures show examples of current and voltage connections.
There are no switches or jumpers to set up for current and voltage inputs. Setup and programming is

performed through the front panel buttons.

Figure 5. Transmitters Powered by Internal Supply

Figure 6. Transmitter Powered by Ext. Supply or Self-Powered

The current input is protected against current overload by a resettable fuse. The display may or may not
show a fault condition depending on the nature of the overload.

The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself
when the fault condition is removed.

Figure 7. Voltage Input Connections

The meter is capable of accepting any voltage from -10 VDC to +10 VDC.

14

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX to RS-485

Serial Converter Connections

RS-485 Serial
Converter

ProtEX-MAX RS­485 Connections

DO DI DO DI DI DO DI DO

F4 COM DI DI DO DO

TX

RX

1 2 3 4 51 2

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Serial Communications Connections

The ProtEX-MAX has a 5 position terminal block for connecting RS-485 serial devices.
Figure 8 details the wiring connections from the ProtEX-MAX to an RS-485 serial converter (such as the

PDA7485 or PDA8485) for a four-wire network.

Figure 8: ProtEX-MAX Connections to a Serial Converter

The ProtEX-MAX has three diagnostic LEDs: a Power (P) LED to show when the module is powered
properly, a Transmit Data (TX) LED to show when the module is being transmitted to by the PC side, and
a Receive Data (RX) LED to show when the module is sending data to a receiving device.

The following diagrams detail how to connect the RS-485 serial communications from the ProtEX-MAX to
a RS-485/RS-232 serial converter (PDA7485) in four wire and two wire configurations.

Three Wire Connections

In order to wire the 5 pins for use as a 3-wire half-duplex RS-485 connection, it is necessary to create a
jumper connection between DI – DO and DI- – DO- as shown below.

Figure 9. Three-Wire RS485 Connection

Find Quality Products Online at: [email protected]

15

www.GlobalTestSupply.com

WARNING

Observe all safety regulations. Electrical wiring should be performed
in accordance with all agency requirements and applicable national,
state, and local codes to prevent damage to the meter and ensure
personnel safety.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Figure 10: RS-485 Wiring

Notes:

1. Termination resistors are optional and values depend on the cable length and characteristic
impedance. Consult the cable manufacturer for recommendations.

2. Refer to RS-232 to RS-485 Converter documentation for further details.

3. Use shielded cable, twisted-pairs plus ground. Connect ground shield only at one location.

Find Quality Products Online at: [email protected]

16

www.GlobalTestSupply.com

WARNING

Observe all safety regulations. Electrical wiring should be performed
in accordance with all agency requirements and applicable national,
state, and local codes to prevent damage to the meter and ensure
personnel safety.

NOTICE

PROVU expansion modules and serial adapters are not included in
the hazardous area approvals of the ProtEX-MAX. The PDA1232
may be used only while the ProtEX-MAX is in a safe area, and will
disable some features while installed.

!

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Notes:

1. Termination resistors are optional and values depend on the cable length and characteristic
impedance. Consult the cable manufacturer for recommendations.

2. Refer to RS-232 to RS-485 Converter documentation for further details.

3. Use shielded cable, twisted-pair plus ground. Connect ground shield only at one location.

When using more than one instrument in a multi-drop or multi-point mode, each meter must be provided
with its own unique address. See Modbus RTU Serial Communications on page 47.

Figure 11: RS-485 Two-Wire Multi-Drop Wiring

Using PROVU Serial Adapters

PROVU expansion modules and serial adapters are not recommended for use with the ProtEX-MAX. It is
recommended that any serial protocol conversion required on the RS-485 communications connection be
performed using a PDA7485 RS-232 to RS-485 or PDA8485 USB to RS-485 serial converter located in a
safe area.

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

17

C NONO NC NC C

RELAY4 RELAY3

4 36 5 2 1

C NONO NC NC C

RELAY2 RELAY1

4 36 5 2 1

C

R

C

R

Figure 14. Low Voltage DC Loads Protection

Use a diode with a reverse
breakdown voltage two to
three times the circuit
voltage and forward current
at least as large as the load
current.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Relay Connections

Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4 on Figure 3.
Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of
the corresponding relay. The relays’ C terminals should not be confused with the COM (common) terminal
of the INPUT SIGNAL connector.

Figure 12. Relay Connections

Switching Inductive Loads

The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent
disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts.
Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased
as complete assemblies. Refer to the following circuits for RC network assembly and installation:

Figure 13. AC and DC Loads Protection

Choose R and C as follows:
R: 0.5 to 1 Ω for each volt across the contacts
C: 0.5 to 1 µF for each amp through closed contacts

Notes:

1. Use capacitors rated for 250 VAC.

2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.

3. Install the RC network at the
meter's relay screw terminals. An
RC network may also be
installed across the load.
Experiment for best results.

RC Networks Available from Precision Digital

RC networks are available from Precision Digital and should be applied to each relay contact switching an
inductive load. Part number: PDX6901.

Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.

Find Quality Products Online at: [email protected]

18

www.GlobalTestSupply.com

Figure 15. F4 Digital Input Connections

Figure 16. 4-20 mA Output Connections

12-35 VDC

Power

Supply

+

4-20 mA

Input Meter

-

+

RI- I+

13 2

RELAY1

3 2 1

24 V

-

4-20 mA Input

Remote Display,

Chart Recorder, Etc.

-

+

RI- I+

MA OUT

13 2

RELAY1

3 2 1

24 V

MA OUT

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

F4 Digital Input Connections

A digital input, F4, is standard on the meter. This digital
input is connected with a normally open contact across
F4 and COM, or with an active low signal applied to F4.

4-20 mA Output Connections

Connections for the 4-20 mA transmitter output
are made to the connector terminals labeled MA
OUT. The 4-20 mA output may be powered
internally or from an external power supply.

Analog Output Transmitter Power Supply

The internal 24 VDC power supply powering the analog output may be used to power other devices, if the
analog output is not used. The I+ terminal is the +24 V and the R terminal is the return.

Interlock Relay Feature

As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as
interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This
feature is enabled by configuring the relay, and relative digital input(s) (see page 42). In one example, dry
interlock contacts are connected in series to one
digital input which will be used to force on
(energize) the assigned interlock power relay
when all interlock contacts are closed (safe). The
interlock relay front panel LED flashes when
locked out. The interlock relay would be wired in­series with the load (N/O contact). See below.

Figure 17. Interlock Connections

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

19

NOTICE

The onboard digital inputs (1-4) are configured at the factory to function
identically to the front panel pushbuttons (Menu, F1, F2, & F3) in order to
work with the SafeTouch buttons. Changing the programming of the digital
inputs will affect the function of the SafeTouch buttons.

If you wish to change the behavior of the digital inputs, re-assign F1-F3 to
the desired function, then change the corresponding digital input to match.

WARNING

Observe all safety regulations. Electrical wiring should be performed in
accordance with all agency requirements and applicable national, state,
and local codes to prevent damage to the meter and ensure personnel
safety.

Digital
Input
Connection

Factory Default
Function

I1

MENU

I2

RIGHT arrow

I3

UP arrow

I4

ENTER arrow

NOTICE

The digital inputs are configured at the factory to function
identically to the front panel pushbuttons in order to work with
the SafeTouch buttons. Changing the programming of the
digital inputs will affect the function of the SafeTouch buttons.

1 2 3 4 5 6

+5 I1 I2 I3 I4 O1

7 8

O2 O3

9 10

O4 G

DI 1-4 DO 1-4

5 VDC GND

!

!

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Digital I/O Connections

The ProtEX-MAX has a 10 position terminal block for connecting digital inputs and outputs.

Figure 18: Digital I/O Connections

External Switch Contacts

The ProtEX-MAX includes 4 digital inputs. These digital inputs are preconfigured at the factory to function
as external contacts to duplicate the front button functions of the instrument. The factory configuration
uses the following corresponding digital input terminals for external switch contacts.

See Digital Inputs & Outputs in the Specification on page 7 for details on the digital inputs.

Find Quality Products Online at: [email protected]

20

www.GlobalTestSupply.com

The meter is factory calibrated prior to shipment to read in

milliamps and volts depending on the input selection. The

calibration equipment is traceable to NIST standards.

WARNING

Take caution when cleaning the window glass as it may result in
unintentional SafeTouch button events. Only clean the ProtEX-MAX
when the system is safely shut down, and inspect the ProtEX-MAX
for proper configuration prior to system restart.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Setup and Programming

Overview

There are no jumpers to set for the meter input selection.
Setup and programming may be done through the infrared through-glass SafeTouch buttons, or using the

mechanical buttons when uncovered. There is a slide switch located on the connector board. This is used
to enable or disable SafeTouch Buttons.

After power and input signal connections have been completed and verified, apply power to the meter.

SafeTouch® Buttons

The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be
programmed and operated without removing the cover (and exposing the electronics) in a hazardous
area.

These buttons can be disabled for security by selecting DISABLE on the switch labeled NO-CONTACT
BUTTONS located on the connector board.

To actuate a button, press one finger to the glass directly over the marked button area. Then retract finger
more than three inches from the glass before pressing the next button. When the cover is removed, the
four mechanical buttons located next to the sensors are used. The sensors are disabled when a
mechanical button is pressed and will automatically be re-enabled after 60 seconds of inactivity.

The SafeTouch Buttons are designed to filter normal levels of ambient interference and to protect against
false triggering, however, it is recommended that the SafeTouch Buttons be disabled (slide switch to
LOCK) if there is an infrared interference source in line-of-sight to the display.

The SafeTouch Buttons are configured by default to duplicate the function of the front panel mechanical
pushbuttons associated with the integrated meter. The symbols by each SafeTouch button correspond to
a mechanical button as shown in the table on the next page.

SafeTouch Button Tips:

• To the extent possible, install the display facing away from sunlight, windows, reflective objects and
any sources of infrared interference.

• Keep the glass window clean.

• Tighten the cover securely.

• Use a password to prevent tampering.

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

21

Symbol

Description

LED

Status

FT IN

- -

Feet and inches
designation separators

8

16

Fractions of an inch indicator
(eighths or sixteenths)

Menu

1-8

Alarm 1-8 indicator

Right arrow/F1

1-8
M

Flashing: Relay in manual
control mode

Up arrow/F2

1-8

Flashing: Relay interlock
switch open

Enter/F3

Note:

Note:

F4-8 are digital inputs.

LEDs for relays in manual mode flash
with the “M” LED every 10 seconds.
“M” flashing by itself indicates Aout –
manual control is used.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Front Panel Buttons and Status LED Indicators

• Press the Menu button to enter or exit the Programming Mode at any time.

• Press the Right arrow button to move to the next digit during digit or decimal point programming.

• Press or hold the Up arrow button to scroll through the menus, decimal point, or to increment the

value of a digit.

• Press the Enter button to access a menu or to accept a setting.

• Press and hold the Menu button for three seconds to access the advanced features of the meter.

Find Quality Products Online at: [email protected]

22

www.GlobalTestSupply.com

Note: If you decide to update your MeterView Pro software, once the installation has completed, you
will be asked if you want to update the setup files located on the meter itself. This way, you will always
have the most current version on the meter for future installs.

Warning!

Do not unplug the meter while the new installation files are being written to it. The
meter will display uwrite during the process and you will receive an onscreen

notification once the process is complete.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

MeterView® Pro Software

The meter can also be programmed using the PC-based MeterView Pro software included with the meter.
This software can be installed on any Microsoft® Windows® (XP/Vista/7/8/10) computer by connecting
the meter’s onboard USB. The meter is powered by the USB connection, so there is no need to wire
anything prior to programming the meter, though USB is intended only for meter configuration.

MeterView Pro Installation

1. Connect one end of the provided USB cable to the internal electronics module and the other end

to the computer. The computer will automatically install the driver software it needs to talk to the
meter. Only one meter may be connected at a time. Attaching

multiple meters will cause a conflict with the meter software.

2. Once the driver is installed, an AutoPlay dialog should appear

for the drive “MAINSTAL.” Click “Open folder to view files.”
If the computer does not display an AutoPlay dialog for the
drive “MAINSTAL,” you should open My Computer and double­click on the drive labeled “MAINSTAL.”

3. Double-click on the file named “MAStart.” The program will

open a few windows and install two programs on your
computer. Simply follow the onscreen instructions until you see
one of the dialogs below. If you receive a “User Account
Control” warning, click “Yes.”

4. If there is an update available, click the “Update” button to

install the new version. Otherwise, click “Configure” to begin
programming your meter.

Data logging for one meter at a time is available with MeterView Pro software. More advanced data
acquisition may be accomplished by using any Modbus RTU compliant software. Additional information
regarding configuration and monitoring of the meter using MeterView Pro software is available online.
Go to www.predig.com/meterview-pro.

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

23

Display

Parameter

Action/Setting
Description

setup

Setup

Enter Setup menu

Input

Input

Enter Input selection menu

mA

4-20 mA

Set meter for 4-20 mA
input

volt

0-10 VDC

Set meter for 10 VDC
input

d-SCAL

Dual-scale

Press Enter to select dual­scale display for some level
applications (Select Yes or
No)

units

Units

Select the display
units/tags

Dec pt

Decimal
point

Set decimal point

Pv 2

PV2

PV2 decimal point (Level)

prog

Program

Enter the Program menu

SCALE

Scale

Enter the Scale menu

SCAL 1

Scale 1

Enter the Scale menu for
PV1

SCAL 2

Scale 2

Enter the Scale menu for
PV2

Cal

Calibrate

Enter the Calibration menu

Inp 1

Input 1

Calibrate input 1 signal or
program input 1 value

Dis 1

Display 1

Program display 1 value

Inp 2

Input 2

Calibrate input 2 signal or
program input 2 value (up

to 32 points)

Dis 2

Display 2

Program display 2 value
(up to 32 points)

Error

Error

Error, calibration not
successful, check signal or
programmed value

dsplay

Display

Enter the Display menu

Line 1

Display line
1

Press Enter access Main
display format and
parameter options (default:
PV)

Formt

Format

Format fractional inches to
either eighths (1/8) or
sixteenths (1/16)

Param

Parameter

Press Enter to assign the
Main display parameter
(default: PV)

Dset 1*

Display set
1*

Display relay 1 (*through 8)
set point

D Hi

Display
high

Display high value

D lo

Display low

Display low value

Display

Parameter

Action/Setting
Description

D Hl

Display
hi/low

Alternate between high/low
value

m bus

Display
Modbus

Display Modbus input
register

D pv

Display PV

Select to display PV

Line 2

Display line
2

Press Enter to assign the
small display parameter
(default: engineering units)

D unit

Display unit

Display line 1 display
channel units

D pv2

Display
PV2

Select to display PV2
(dual-scale display)

D pCt

Display
PCT

Select to display percent of
PV1 (dual-scale display)

D l-u

Display
Level Units

Select to display PV1 level
in decimal units on display
line 2

D off

Display off

Turn off display line 2

d-Inty

Display

intensity

Set display intensity level
from 1 to 8

RELaY

Relay

Enter the Relay menu

RLY 1*

Relay 1*

Relay 1 (*through 4) setup

Act 1

Action 1

Set relay 1 action

Auto

Automatic

Set relay for automatic
reset

A-nman

Auto­manual

Set relay for automatic &
manual reset any time

LatCH

Latching

Set relay for latching
operation

Lt-CLr

Latching­cleared

Set relay for latching
operation with manual
reset only after alarm
condition has cleared

Altern

Alternate

Set relay for pump
alternation control

Sanmpl

Sampling

Set relay for sampling
operation

OFF

Off

Disable relay and front
panel status LED (Select
Off to enable Interlock
feature)

Set 1

Set 1

Program set point 1

RSt 1

Reset 1

Program reset point 1

FaiLSF

Fail-safe

Enter Fail-safe menu

FLS 1

Fail-safe 1

Set relay 1 fail-safe
operation

on

On

Enable fail-safe operation

off

Off

Disable fail-safe operation

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Display Functions & Messages

The meter displays various functions and messages during setup, programming, and operation. The following table
shows the main menu functions and messages in the order they appear in the menu.

Find Quality Products Online at: [email protected]

24

www.GlobalTestSupply.com

Display

Parameter

Action/Setting
Description

FLS 2

Fail-safe 2

Set relays 2-4 fail-safe
operation

DeLAY

Delay

Enter relay Time Delay
menu

DLY 1

Delay 1

Enter relay 1 time delay
setup

On 1

On 1

Set relay 1 On time delay

OFF 1

Off 1

Set relay 1 Off time delay

DLY 2

Delay 2

Enter relays 2-4 time delay
setup

break

Loop break

Set relay condition if loop
break detected

Break1*

Loop break
1*

Set relay 1 (*through 4)
condition if loop break
detected

ignore

Ignore

Ignore loop break condition
(Processed as a low signal
condition)

On

On

Relay goes to alarm
condition when loop break
is detected

Off

Off

Relay goes to non-alarm
condition when loop break
is detected

Aout

Analog
output

Enter the Analog output
scaling menu

Dis 1

Display 1

Program display 1 value

Out 1

Output 1

Program output 1 value
(e.g. 4.000 mA)

Display

Parameter

Action/Setting
Description

Dis 2

Display 2

Program display 2 value

Out 2

Output 2

Program output 2 value
(e.g. 20.000 mA)

reset

Reset

Press Enter to access the
Reset menu

Rst Hi

Reset high

Press Enter to reset max
display

Rst Lo

Reset low

Press Enter to reset min
display

Rst HL

Reset
high & low

Press Enter to reset max &
min displays

Contrl

Control

Enter Control menu

Auto

Automatic

Press Enter to set meter for
automatic operation

mAn

Manual

Press Enter to manually
control relays or analog
output operation

pass

Password

Enter the Password menu

Pass 1

Password 1

Set or enter Password 1

Pass 2

Password 2

Set or enter Password 2

Pass 3

Password 3

Set or enter Password 3

unloc

Unlocked

Program password to lock
meter

locd

Locked

Enter password to unlock
meter

999999

-99999

Flashing

Over/under range condition

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

25

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

dis 1 dis 1 dis 1

Next

Setting

Select

Next
Digit

Increment

Digital

Value

Accept
Setting

FT

IN

-

-

FT IN

-

-

FT IN

-

-

FT

IN

-

-

level

Main Menu

The main menu consists of the most
commonly used functions: Setup, Reset,
Control, and Password.

• Press Menu button to enter
Programming Mode then press the Up
arrow button to scroll main menu.

• Press Menu, at any time, to exit and
return to Run Mode. Changes made to
settings prior to pressing Enter are not
saved.

• Changes to the settings are saved to
memory only after pressing Enter/F3.

• The display moves to the next menu
every time a setting is accepted by
pressing Enter/F3.

Setting Numeric Values

The numeric values on PV1 (main display) are set using the Right and Up arrow buttons. Press Right
arrow to select next digit and Up arrow to increment digit value.
The digit being changed is displayed brighter than the rest. The leading zero in any of the unit
designations is omitted. Because of this, if the leading zero of any unit designation is the currently
selected unit, none of the digits will be brighter than any other. Pressing the Up arrow will increment the
value to 1.
The range of numeric values for each unit designation is from 0-99 for feet, 0-11 for inches and either 0-7
or 0-15 for fractional inches depending on whether you are in eighths (1/8) or sixteenths (1/16) mode.
Press and hold up arrow to auto-increment the display value.
Press the Enter button, at any time, to accept a setting or Menu button to exit without saving changes.

Find Quality Products Online at: [email protected]

26

www.GlobalTestSupply.com

Enter custom
units here

Note:

Decimal Point menu only appears
when dual scale is active. Decimal
point selection is only available for
PV2 on the secondary (little) display.

Note:

Use the d-SCAL selection
to activate the dual-scale
level feature - PV1 & PV2
(see introduction on page

6). Set d-SCAL to no if
both displays are to be
used for anything other
than PV1 & PV2.

Note:

Scal 1 & Scal 2 are
displayed instead of
Scale if d-SCAL is
selected under the
Setup Input menu.
They correspond to
the PV1 & PV2
scales.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Setting Up the Meter (setup)

The Setup menu is used to select:

1. Input signal the meter will accept

2. Dual-scale feature for some level

3. Select the display units/tags

4. Decimal point position

5. Programming Menu

6. Display parameter and intensity

7. Relay operation

8. 4-20 mA analog output scaling

Press the Enter button to access any menu
or press Up arrow button to scroll through
choices. Press the Menu button to exit at
any time.

Setting the Input Signal (Input)

Enter the Input menu to set up the meter to display current (mA) or voltage (volt) inputs.
The current input is capable of accepting any signal from 0 to 20 mA. Select current input to accept 0-20

mA or 4-20 mA signals.
The voltage input is capable of accepting any signal from -10 to +10 VDC. Select voltage input to accept 0-

5, 1-5, 0-10, or 10 VDC signals.
After selecting mA or Volt input, d-SCAL is displayed; press Enter to select “Yes” or “No”. Selecting “Yes”

enables the dual-scale feature, which allows for the Scale (SCALE) and Units (units) menus to be used to
scale the same input in two different scales for PV1 & PV2.

applications

Set d-SCAL to NO if both displays are to be used for anything other than PV1 & PV2.

27

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Display

Character

0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 A A b b C C c c d d e E f F g G 9 g H H h h I I I i j J k K l

L

m

m

n n O O o o p P q q r r s S t t u u v

V

uw

w

x X y Y z Z - - / / [ ] ] [ =

=

!

Degree(<)

Space

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Setting the Input Units or Custom Tags (units)

Enter the input unit or custom tag that will be displayed if d unit is selected as the display line 2
parameter. See the flow chart on page 32 to access the display menu to show the unit or tag on line 2.
The engineering units or custom legends can be set using the following 7-segment character set:

Notes:

Degree symbol represented by (<) if programming with MeterView® Pro.
The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are shifted

one position.
Press and hold up arrow to auto-scroll the characters in the display.

Setting the Decimal Point (dEc pt)

The decimal point on PV2 (display line 2) may be set only if the dual-scale level feature is selected. It may
be set with up to five decimal places or with no decimal point at all.

Pressing the Right arrow moves the decimal point one place to the right until no decimal point is
displayed, and then it moves to the leftmost position. Pressing the Up arrow moves the decimal point one
place to the left.

28

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Programming the Meter (prog)

It is very important to read the following information, before proceeding to program the meter:

• The meter is factory calibrated prior to shipment to read in milliamps and volts depending on the input
selection. The calibration equipment is traceable to NIST standards.

• Use the Scale menu to scale the process input (e.g. 4-20 mA). A calibrated signal source is not
needed to scale the meter.

• Use the Calibrate menu to apply a signal from a calibrator.

• The PD6001 is a single input meter with dual-scale capability.

The Program menu contains the Scale and the Calibrate menus.
Note: The Scale and Calibrate functions are exclusive of each other. The meter uses the last function

programmed. Only one of these methods can be employed at a time. The Scale and Calibrate functions
can use up to 32 points (default is 2). The number of points should be set in the Advanced menu under
the Multi-Point Linearization (Linear) menu selection prior to scaling and calibration of the meter, see
page
49 for details.

If the dual-scale level feature is selected in the Setup menu, the Scale 1 and Scale 2 menus are enabled
for PV1 & PV2 respectively.

The process input may be calibrated or scaled to any display value within the range of the meter.

Program Menu for Single Scale Process

Program Menu for Dual-Scale Level Applications

Additional parameters, not needed for most applications, are programmed in the Advanced Features
menu; see Advanced Features Menu, page 45.

Multi-Point Calibration & Scaling

The meter is set up at the factory for 2-point linear calibration. The number of points for multi-point
calibration/scaling is set up in the Advanced Features menu. Up to 32 linearization points may be
selected for PV1 and up to 8 linearization points may be selected for PV2. See page 49 for details.

29

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Scaling the Input for PV1 (SCAL 1)

Scaling the Input for PV2 (SCAL 2)

For instructions on how to program

numeric values see Setting Numeric

Values, page 26.

Input Range

Input 1 & Input 2 Span

4-20 mA

0.15 mA

10 VDC

0.01 VDC

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Scaling the Meter (SCALE)

The process input (4-20 mA, 10 VDC) can be scaled to display the process variable in engineering units.
A signal source is not needed to scale the meter; simply program the inputs and corresponding display
values.

Dual-Scale for Level Application

The analog input can be displayed in two different scales, by enabling the dual-scale feature (d-SCAL) in
the Setup-Input menu, see page 27.
To enable the dual-scale feature for some level applications you must select d-SCAL in the Input
selection menu.

Error Message (Error)

An error message indicates that the calibration or scaling process was not successful.
After the error message is displayed, the meter reverts to the input prior to the failure during calibration or

scaling and to input 1 during internal calibration, allowing the appropriate input signal to be applied or
programmed.

The error message might be caused by any of the following conditions:

1. Input signal is not connected to the proper terminals or it is connected backwards.

2. Wrong signal selection in Setup menu.

3. Minimum input span requirements not maintained.

4. Input 1 signal inadvertently applied to calibrate input 2.

Minimum Input Span

Find Quality Products Online at: [email protected]

The minimum input span is the minimum difference
between input 1 and input 2 signals required to complete
the calibration or scaling of the meter.

30

www.GlobalTestSupply.com

Note: To scale the meter without a signal
source refer to Scaling the Meter (SCALE),
page 30.

Warm up the meter for at least 15 minutes before

performing calibration to ensure specified accuracy.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Calibrating the Meter with External Source (Cal)

The meter can be calibrated to display the process variable in engineering units by applying the
appropriate input signal and following the calibration procedure.

The use of a calibrated signal source is strongly recommended to calibrate the meter.

31

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Setting the Display Parameter & Intensity (dsplay)

Display line 1 can be programmed to display:

1. Process value

2. Relay set points

3. Max & min values

4. Modbus input

Display line 2 can be programmed to display:

1. Unit or tag

2. Process value 2 (PV2)

3. Percent of PV1 (PCT)

4. Relay set points

5. Level value in feet with unit or tag

6. Max & min values

7. Engineering units or custom legends

8. Modbus input

9. Off (no display)

Display Intensity: The meter has eight display
intensity levels to give the best performance under
various lighting conditions. Select intensity 8 for
outdoor applications. The default intensity setting
is 8.

After setting up the input and display, press the Menu button to exit programming and skip the rest of the
setup menu. Press the Menu button again and the Up arrow to reach the Program menu and complete
the scaling or calibration of the meter.

32

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Caution!

During setup, the relays do not follow the input and they will
remain in the state found prior to entering the Relay menu.

!

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Setting the Relay Operation (relay)

This menu is used to set up the operation of the relays.

1. Relay action

a. Automatic reset only (non-latching)
b. Automatic + manual reset at any time (non-latching)
c. Latching (manual reset only)
d. Latching with Clear (manual reset only after alarm condition has cleared)
e. Pump alternation control (automatic reset only)
f. Sampling (the relay is

activated for a user­specified time)

g. Off (relay state controlled by

Interlock feature)

2. Set point

3. Reset point

4. Fail-safe operation

a. On (enabled)
b. Off (disabled)

5. Time delay

a. On delay (0-999.9 seconds)
b. Off delay (0-999.9 seconds)

6. Relay action for loss (break) of 4-20 mA

input (ignore, on, off)

Setting the Relay Action

Operation of the relays is programmed in the Action menu.
The relays may be set up for any of the following modes of
operation:

1. Automatic reset (non-latching)

2. Automatic + manual reset at any time (non-latching)

3. Latching (manual reset only, at any time)

4. Latching with Clear (manual reset only after alarm condition has cleared)

5. Pump alternation control (automatic reset only)

6. Sampling (the relay is activated for a user-specified time)

7. Off (relay state controlled by Interlock feature)

The following graphic shows relay 1 action setup; relay 2-4 are set up in a similar fashion.

Programming Set and Reset Points

High alarm indication: program set point above reset point.
Low alarm indication: program set point below reset point.
The deadband is determined by the difference between set and

reset points. Minimum deadband is one display count. If the set
and reset points are programmed with the same value, the relay
will reset one count below the set point.

Note: Changes are not saved until the reset point has been
accepted.

33

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

High Alarm Operation (Set > Reset)

For Manual reset mode, ACK can be pressed anytime
to turn "off" relay. To detect a new alarm condition, the
signal must go below the set point, and then go above
it.

Low Alarm Operation (Set < Reset)

For Manual reset mode, ACK can be pressed anytime
to turn "off" relay. For relay to turn back “on”, signal
must go above set point and then go below it.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Setting Fail-Safe Operation

In fail-safe mode of operation, the relay coil is energized when the process variable is within safe limits and the relay
coil is de-energized when the alarm condition exists. The fail-safe operation is set independently for each relay.
Select on to enable or select off to disable fail-safe operation.

Programming Time Delay

The On and Off time delays may be programmed for each relay between 0 and 999.9 seconds. The relays will
transfer only after the condition has been maintained for the corresponding time delay.

The On time delay is associated with the set point.
The Off time delay is associated with the reset point.

Relay Action for Loss of 4-20 mA Input (Loop Break)

The loop break feature is associated with the 4-20 mA input. Each relay may be programmed to go to one of the
following conditions when the meter detects the loss of the input signal (i.e. < 0.005 mA):

1. Turn On (Go to alarm condition)

2. Turn Off (Go to non-alarm condition)

3. Ignore (Processed as a low signal condition)

Note: This is not a true loop break condition; if the signal drops below 0.005 mA, it is interpreted as a “loop break”

condition.

Relay and Alarm Operation Diagrams

The following graphs illustrate the operation of the relays, status LEDs, and ACK button.

34

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

High Alarm with Fail-Safe
Operation (Set > Reset)

Note: Relay coil is energized in non-alarm

condition. In case of power failure, relay will
go to alarm state.

Low Alarm with Fail-Safe Operation
(Set < Reset)

Note: Relay coil is energized in non-alarm

condition. In case of power failure, relay will
go to alarm state.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

35

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Set

Reset

Relay

LED

Input

Sample

Time

Sample

Time

Sample

Time

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Pump Alternation Control Operation

Relay Sampling Operation

When the signal crosses the set point, the relay trips and the sample time starts. After the sample time
has elapsed, the relay resets. The cycle repeats every time the set point is crossed, going up for high
alarms and going down for low alarms.

The sample time can be programmed between 0.1 and 5999.9 seconds.

36

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Relay

LED

Input

Loop Break = Ignore

de-energized energized

off on

Relay

LED

Loop Break = Off

Relay

LED

Loop Break = On

Set

Reset

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Signal Loss or Loop Break Relay Operation

The following graph shows the loop break relay operation for a high alarm relay.

When the meter detects a break in the 4-20 mA loop, the relay will go to one of the following selected
actions:

1. Turn On (Go to alarm condition)

2. Turn Off (Go to non-alarm condition)

3. Ignore (Processed as a low signal condition)

Time Delay Operation

The following graphs show the operation of the time delay function.

When the signal crosses the set point, the On time delay timer starts and the relay trips when the time
delay has elapsed. If the signal drops below the set point (high alarm) before the time delay has elapsed,
the On time delay timer resets and the relay does not change state. The same principle applies to the Off
time delay.

Note: If “Automatic or Manual (A-mAn)” reset mode is selected, the LED follows the reset point and not

Find Quality Products Online at: [email protected]

the relay state when the relay is acknowledged.

www.GlobalTestSupply.com

37

Alarm

#

HI or LO

Alarm

Set Point

Reset

Point

Power-Up

Reading

Relay

& LED

1

HI

10FT0

IN 0

/16

5FT0

IN 0

/16

4FT11

IN 15

/16

Off 2 LO

7FT0

IN 0

/16

9FT0

IN 0

/16

4FT11

IN 15

/16

On 3 LO

2FT6

IN 0

/16

4FT0

IN 0

/16

4FT11

IN 15

/16

Off 4 HI

4FT6

IN 0

/16

2FT0

IN 0

/16

4FT11

IN 15

/16

On

Fail-Safe
Selection

Non-Alarm State

Alarm State

Power Failure

NO

NC

NO

NC

Off

Open

Closed

Closed

Open

Relays go to
non-alarm state

On

Closed

Open

Open

Closed

Relays go to
alarm state

LED

Status

LED

Status

1

Alarm 1

5 Alarm 5

2

Alarm 2

6 Alarm 6

3

Alarm 3

7 Alarm 7

4

Alarm 4

8 Alarm 8

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Relay Operation Details

Overview

The relay capabilities of the meter expand its usefulness beyond simple indication to provide users with
alarm and control functions. These capabilities include front panel alarm status LEDs as well as either 2
or 4 optional internal relays. Typical applications include high or low level alarms, control applications
such as simple on/off pump control, and pump alternation control for up to 4 pumps. There are four basic
ways the relays can be used:

1. High or Low Alarms with Latching or Non-Latching Relays

2. Simple On/Off Control with 100% Adjustable Deadband

3. Sampling (Based on Time)

4. Pump Alternation Control for up to 4 Pumps

Relays Auto Initialization

When power is applied to the meter,
the front panel LEDs and alarm
relays will reflect the state of the
input to the meter. The following
table indicates how the alarm LEDs
and relays will react on power-up
based on the set and reset points:

Fail-Safe Operation

The following table indicates how
the relays behave based on the fail­safe selection for each relay:

Note: NO = Normally Open, NC =

Normally Closed. This refers
to the condition of the relay
contacts when the power to
the meter is off.

Front Panel LEDs

The LEDs on the front panel provide status indication for the
following:

The meter is supplied with four alarm points that include front
panel LEDs to indicate alarm conditions. This standard feature is
particularly useful for alarm applications that require visual-only
indication. The LEDs are controlled by the set and reset points programmed by the user. When the
display reaches a set point for a high or low alarm, the corresponding alarm LED will turn on. When the
display returns to the reset point the LED will go off. The front panel LEDs respond differently for latching
and non-latching relays.

For non-latching relays, the LED is always off during normal condition and always on during alarm
condition, regardless of the state of the relay (e.g. Relay acknowledged after alarm condition).

For latching relays, the alarm LEDs reflect the status of the relays, regardless of the alarm condition. The
following tables illustrate how the alarm LEDs function in relation to the relays and the acknowledge
button (Default: F3 key assigned to ACK):

38

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Warning!

In latching relay mode, latched relays will
reset (unlatch) when power is cycled.

Relay terminology for following tables

Terminology

Relay Condition

On

Alarm (Tripped)

Off

Normal (Reset)

Ack

Acknowledged

Automatic reset only

Condition

LED

Relay

Normal

Off

Off

Alarm

On

On

Ack (No effect)

On

On

Normal

Off

Off

Automatic + manual reset at any time

Condition

LED

Relay

Normal

Off

Off

Alarm

On

On

Normal

Off

Off

Next Alarm

On

On

Ack

On

Off

Normal

Off

Off

Manual reset any time

Condition

LED

Relay

Normal

Off

Off

Alarm

On

On

Ack

Off

Off

Manual reset only after alarm

condition has cleared

Condition

LED

Relay

Normal

Off

Off

Alarm

On

On

Ack (No effect)

On

On

Normal

On

On

Ack

Off

Off

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Latching and Non-Latching Relay Operation

The relays can be set up for latching (manual reset) or
non-latching (automatic reset) operation.
The On and Off terminology does not refer to the status of
the relay’s coil, which depends on the fail-safe mode
selected.

Non-Latching Relay (Auto)

In this application, the meter is set up for automatic reset
(non-latching relay). Acknowledging the alarm while it is still
present has no effect on either the LED or the relay. When
the alarm finally goes away, the relay automatically resets
and the LED also goes off.

Non-Latching Relay (A-man)

In this application, the meter is set up for automatic and
manual reset at any time (non-latching relay). The LED and
the relay automatically reset when the meter returns to the
normal condition.
The next time an alarm occurs, the operator acknowledges
the alarm manually while the alarm condition still exists.
This causes the relay to reset, but the LED stays on until
the meter returns to the normal condition.

Latching Relay (LatcH)

In this application, the meter is set up for manual reset at any
time. Acknowledging the alarm even if the alarm condition is
still present resets the relay and turns off the LED.

Latching Relay (Lt-Clr)

In this application, the meter is set up for manual reset only
after the signal passes the reset point (alarm condition has
cleared). Acknowledging the alarm while it is still present has
no effect on either the LED or the relay. When the alarm is
acknowledged after it returns to the normal state, the LED
and the relay go off. Notice that the LED remains on, even
after the meter returns to the normal condition. This is
because, for latching relays, the alarm LED reflects the
status of the relay, regardless of the alarm condition.

39

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Set and Reset Point Programming

Relay

Set Point

Reset Point

Function

1

30FT0IN 0/16

10FT0IN 0/16

Controls pump #1

2

35FT0IN 0/16

5FT0IN 0/16

Controls pump #2

3

4FT0IN 0/16

9FT0IN 0/16

Controls low alarm

4

40FT0IN 0/16

29FT0IN 0/16

Controls high alarm

+5 I1 I2 I3 I4 O1 O2 O3 O4 G

DO 1-4

GND

ACK

PDA1044 Digital I/O Module

1 2 3 4 5 6 7 8 9 10

DI 1-4

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Acknowledging Relays

There are two ways to acknowledge relays programmed for manual reset:

1. Via the programmable front panel function keys F1-F3 (Default: F3 assigned to ACK).

2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V

terminals on the digital I/O modules, or using the F4 digital input, which is triggered with a contact
closure to COM, or with an active low signal (see page 19).

When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are
acknowledged.

Figure 19. Acknowledge Relays w/Function Key or Digital Input

Pump Alternation Control Applications (Altern)

For pump control applications where two or more similar pumps are used to control the level of a tank or a
well, it is desirable to have all the pumps operate alternately. This prevents excessive wear and
overheating of one pump over the lack of use of the other pumps.
Up to 4 relays can be set up to alternate every time an on/off pump cycle is completed. The set points
and reset points can be programmed, so that the first pump on is the first pump off.

Application #1: Pump Alternation Using Relays 1 & 2

1. Relays 1 and 2 are set up for pump alternation.

2. Relays 3 and 4 are set up for low and high alarm indication.

Pump Alternation Operation

1. Pump #1 turns on when level reaches 30FT, when level drops below 10FT, pump #1 turns off.

2. The next time level reaches 30FT, pump #2 turns on, when level drops below 10FT, pump #2 turns off.

3. If the level doesn’t reach 35FT, pump #1 and pump #2 will be operating alternately.

4. If pump #1 cannot keep the level below 35FT, pump #2 will turn on at 35FT, then as the level drops to
10FT, pump #1 turns off, pump #2 is still running and shuts off below 5FT.

5. Notice that with the set and reset points of pump #2 outside the range of pump #1, the first pump on
is the first pump to go off. This is true for up to 4 alternating pumps, if setup accordingly.

6. Relay #3 will go into alarm if the level drops below 4FT and relay #4 will go into alarm if the level
exceeds 40FT.

Find Quality Products Online at: [email protected]

40

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Set and Reset Point Programming

Relay

Set Point

Reset Point

Function

1

4FT10IN 0/16

7FT6IN 0/16

Controls low alarm

2

45FT0IN 0/16

42FT0IN 0/16

Controls high alarm

3

40FT0IN 0/16

9FT0IN 0/16

Controls backup pump

4

30FT0IN 0/16

10FT0IN 0/16

Controls main pump

FT IN

-

-

16

30

FT

10

FT

FT IN

-

-

16

30

FT

10

FT

FT IN

-

-

16

40

FT

9

FT

FT IN

-

-

16

45

FT

42

FT

FT IN

-

-

16

7 6

FT IN

4 10

FT IN

Application #2: Pump Alternation Using Relays 3 & 4

1. Relays 1 and 2 are set up for low and high alarm indication.

2. Relays 3 and 4 are set up for pump alternation.

The following graphics provide a visual representation of a typical pump alternation application with high
and low alarm monitoring:

1. Relay #4 turns the main pump on at 30FT and
turns it off at 10FT.

2. With the Pump Alternation feature activated,
the next time the level reaches 30FT, relay #3
transfers and starts the backup pump.

3. If the backup pump is not able to keep up,
and the level reaches 40FT, relay #4 transfers
and starts the main pump as well.

4. Relay #2 trips the High Level Alarm at 45

FT

and resets at 42FT.

5. Relay #1 trips the Low Level Alarm at 4FT10
and resets at 7FT6IN.

IN

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

41

For instructions on how to program

numeric values see Setting Numeric

Values, page 26.

1 2 3 4 5

6

+5

I1

I2

I3

I4

O1

7

8

O2

O3

9

10

O4

G

DI 1-4

DO 1-4

5 VDC

GND

SW2

SW1

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Setting Up the Interlock Relay (Force On) Feature

Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature:

1. Access the Setup – Relay – Action menu and set the action to off.

2. In the Advanced features – User menu program any of the digital inputs to Force On any of the

internal relays (1-4).

3. Connect a switch or dry contact between the +5V terminal and the corresponding digital input (dI-1 to

dI-4) terminal.

Interlock Relay Operation Example

Relays 1 & 2 are configured to energize (their front panel LEDs are off) when SW1 & SW2 switches
(above) are closed. If the contacts to these digital inputs are opened, the corresponding front panel LEDs
flash indicating this condition. The processes being controlled by the interlock relay will stop, and will re­start only after the interlock relay is re-activated by the digital inputs (switches).

Note: If multiple digital inputs are assigned to the same relay, then the corresponding logic is (AND) – i.e.
both switches must be closed to trip the relay.

Scaling the 4-20 mA Analog Output (Aout)

The 4-20 mA analog output can be scaled to provide a 4-20 mA signal for any display range selected.
No equipment is needed to scale the analog output; simply program the display values to the

corresponding mA output signal.
The Analog Output menu is used to program the 4-20 mA output based on display values.

42

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Reset Menu (reset)

The Reset menu is used to reset the maximum or minimum reading (peak or valley) reached by the
process; both may be reset at the same time by selecting “reset high & low” (rst HL).

Control Menu (Contrl)

The Control menu is used to control the 4-20 mA analog output and the relays manually, ignoring the
input. Each relay and analog output can be programmed independently for manual control. Selecting
automatic control sets all relays and analog output for automatic operation.

Setting Up the Password (pass)

The Password menu is used for programming three levels of security to prevent unauthorized changes to
the programmed parameter settings.

Protecting or Locking the Meter

Enter the Password menu and program a six-digit password.
For instructions on how to program numeric values see Setting Numeric Values, page 26.

43

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Did you forget the password?

The password may be disabled by entering a
master password once. If you are authorized to
make changes, enter the master password 508655
to unlock the meter.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Making Changes to a Password Protected Meter

If the meter is password protected, the meter will display the message Locd (Locked) when the Menu
button is pressed. Press the Enter button while the message is being displayed and enter the correct
password to gain access to the menu. After exiting the programming mode, the meter returns to its
password protected condition.

Disabling Password Protection

To disable the password protection, access the Password menu and enter the correct password twice, as
shown below. The meter is now unprotected until a new password is entered.

If the correct six-digit password is entered, the meter displays the message unLoc (unlocked) and the
protection is disabled until a new password is programmed.

If the password entered is incorrect, the meter displays the message Locd (Locked) for about two
seconds, and then it returns to Run Mode. To try again, press Enter while the Locked message is
displayed.

44

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Display

Parameter

Action/Setting

filtEr

Filter

Set noise filter value

bypASs

Bypass

Set filter bypass value

Round

Round

Set the rounding value for
display variables

seriAl

Serial

Set serial communication
parameters

SlavId

Slave ID

Set slave ID or meter address

baud

Baud rate

Select baud rate

Tr dLY

Transmit
delay

Set transmit delay for serial
communication

Parity

Parity

Select parity
Even, Odd, or None with 1 or 2
stop bits

t-byt

Time byte

Set byte-to-byte timeout

SelEct

Select

Enter the Select menu
(function, cutoff, out)

Functn

Signal input
conditioning

Select linear, square root,
programmable exponent, or
round horizontal tank function

Pv 1

PV1

Select PV1 number of
linearization points

Linear

Linear

Set meter for linear function
and select number of
linearization points

No PtS

Number of
points

Set PV1 for 2 to 32-point
linearization
Set PV2 for 2 to 8-point
linearization

Display

Parameter

Action/Setting

Pv 2

PV2

Select PV2 number of
linearization points

rht

Round
horizontal
tank

Set meter for round horizontal
tank volume calculation

Inch

Dimension

Calculate volume in gallons

cm

Dimension

Calculate volume in liters

diamr

Diameter

Enter the tank’s diameter in
inches

Length

Length

Enter the tank’s length in
inches

Cutoff

Cutoff

Program Low Flow Cutoff
Value for PV 1

aoutPr

Analog
Output
Program

Enter Analog Output
Programmable parameters

menu

Source

Source

Select source for the 4-20 mA
output

O-rang

Overrange

Program mA output for display
overrange

u-rang

Underrange

Program mA output for display
underrange

break

Break

Set input break condition
operation

mAx

Maximum

Program maximum mA output
allowed

min

Minimum

Program minimum mA output
allowed

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Advanced Features Menu

To simplify the setup process, functions not needed for most applications are located in the Advanced
Features menu.

Press and hold the Menu button for three seconds to access the advanced features of the meter.

Advanced Features Menu & Display Messages

The following table shows the functions and messages of the Advanced Features menu in the order they appear in
the menu.

45

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Display

Parameter

Action/Setting

Calib

Calibrate

Calibrate 4-20 mA output
(internal reference source
used for scaling the output)

4 mA

4 mA output

Enter mA output value read by
milliamp meter with at least

0.001 mA resolution

20 mA

20 mA
output

Enter mA output value read by
milliamp meter with at least

0.001 mA resolution

user

User I/O

Assign function keys and
digital I/O

F1*

F1 function
key

*Assign F1-F4 function key

Ack

Acknowledg
e

Acknowledge relays

reset

Reset

Enter Reset menu

Rst Hi

Reset Max

Reset Maximum

Rst Lo

Reset Min

Reset Minimum

Rst HL

Reset Max­Min

Reset Maximum & Minimum

relay

Relay

Relay menu

Set 1*

Set Points
1-8

Set Points 1-8

Rly d

Relay
Disable

Relay Disable (all relays)

Rly e

Relay
Enable

Relay Enable (all relays)

O Hold

Output Hold

Output Hold (all relays)

d Hold

Display
Hold

Display Hold (while held low)

Ln1 Hi

Line 1 High

Max on line 1

Ln1 lo

Line 1 Low

Min on line 1

Ln1 Hl

Line 1
High/Low

Max/min line 1

Display

Parameter

Action/Setting

Ln2 Hi

Line 2 High

Max on line 2

Ln2 lo

Line 2 Low

Min on line 2

Ln2 Hl

Line 2
High/Low

Max/min line 2

F On 1*

Force On
Relay 1

*Force relay 1-4 on

Contrl

Control

Control Menu

disabl

Disable

Disable

dI I

Digital input
1

Assign digital input 1 – 4

dO 1

Digital
output 1

Assign digital output 1 – 4

ICal

Internal
source
calibration

Enter internal source
calibration (used for scaling
the meter without a signal
source)

C CAL

Current
calibration

Calibrate 4-20 mA current
input (internal reference
source used for scaling the
input)

C lo

Current low

Calibrate low current input
(e.g. 4 mA)

C Hi

Current
high

Calibrate high current input
(e.g. 20 mA)

v CAL

Voltage
calibration

Calibrate voltage input

v Lo

Voltage low

Calibrate low voltage input
(e.g. 0 V)

v Hi

Voltage
high

Calibrate high voltage input
(e.g. 10 V)

Diag

Diagnostics

Display parameter settings

LED t

LED test

Test all LEDs

Info

Information

Display software and S/N
information

Erase

Erase

Erase MeterView Pro software
stored in meter’s memory

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Find Quality Products Online at: [email protected]

46

www.GlobalTestSupply.com

Rounding
Selection

Actual
Value

Secondary
Display Value

Main Display
Value

Actual
Value

Secondary
Display Value

Main Display
Value

1

12.093

12.093

12FT1IN 2/16

12.953

12.953

12FT11IN 7/16

5

12.093

12.095

12FT1IN 2/16

12.953

12.955

12FT11IN 7/16

10

12.093

12.090

12FT1IN 1/16

12.953

12.950

12FT11IN 6/16

50

12.093

12.100

12FT1IN 3/16

12.953

12.950

12FT11IN 6/16

Warning!

Do not connect any equipment other than Precision Digital’s expansion modules,
cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to
the equipment and the meter.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Noise Filter (filter)

The noise filter is available for unusually noisy signals that cause an unstable process variable display.
The noise filter averages the input signal over a certain period. The filter level determines the length of
time over which the signal is averaged. The filter level can be set between 2 and 199. The higher the filter
level, the longer the averaging time and so the longer it takes the display to settle to its final value. Setting
the filter level to zero disables the filter function.

Noise Filter Bypass (bypass)

The noise filter bypass changes the behavior of the meter so that small variations in the signal are filtered
out but large abrupt changes in the input signal are displayed immediately. The bypass value determines
the minimum amount of signal change to be displayed immediately. All signal changes smaller than the
bypass value are filtered or averaged by the meter. The noise filter bypass may be set between 0.1 and

99.9% of full scale.

Rounding Feature (round)

The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used
in addition to the filter function. Rounding is only applicable if line 2 is setup to display level unit tags (d
l-u). Rounding will round line 2 to the nearest decimal value according the rounding selected. The main
display’s level reading will be adjusted to match the rounded decimal value. See examples below:

Modbus RTU Serial Communications (serial)

The meter is equipped with serial communications capability as a standard feature using Modbus RTU
Serial Communication Protocol.

The meter may be connected to a PC for initial configuration via the onboard micro USB connection. For
ongoing digital communications with a computer or other data terminal equipment, an RS-232, or RS-485
option is required; see Ordering Information on page 5 for details.

Note: More detailed instructions are provided with each optional serial communications adapter.
Note: Refer to the ProVu® Modbus Register Tables located at www.predig.com for details.
Note: Changes made to the Serial menu are initialized after the menu key is pressed or after navigating

through the remainder of the serial parameters (i.e. pass the t-byte parameter).

When using more than one meter in a multi-drop mode, each meter must be provided with its own unique
address. The meter address (Slave ID) may be programmed between 1 and 247. The transmit delay may
be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

47

PDA8485

DO

DO

DI
DI

GND

DO

DO

DI

DI

GND

RS-485 DEVICE

PDA8485

DATA

DATADO

DO

DI

DI

GND GND

RS-485 DEVICE

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Serial Communications Overview

RS-232 and RS-485 are standard interfaces approved by the Electronic Industries Alliance (EIA) for
connecting serial devices. In EIA terms, the device (e.g. meter) that connects to the interface is called a
Data Communications Equipment (DCE) and the device to which it connects (e.g. the computer) is called
a Data Terminal Equipment (DTE).

RS-485 can support multi-point connections per line because it uses lower-impedance drivers and
receivers.

Line drivers and receivers are used to exchange data between two or more points (nodes) on a serial
communications network. Reliable data communications can be difficult in the presence of induced noise,
ground level differences, and other hazards associated with installation of a network. When
communicating at high data rates, or over long distances in real world environments, RS-232 is often
inadequate. The differential data transmission of RS-485 offers superior performance in most
applications. Differential signals can help nullify the effects of ground shifts and induced noise signals that
can appear as common mode voltages on a network.

A multi-point network consists of multiple drivers and receivers connected on a single bus, where any
point (node) can transmit and/or receive data. RS-485 allows multiple drivers and receivers on the same
two-wire or four-wire system. The RS-485 standard specifies up to 32 drivers and 32 receivers on a single
bus, but with the introduction of "automatic" repeaters and high-impedance drivers/receivers, this number
can be extended to hundreds of points (nodes) on a network.

The cabling used for an RS-485 serial communications network should always be a high quality cable
such as Belden 8162 or Alpha 6203C. A two-wire system requires two twisted pairs, and a four-wire
system requires three twisted pairs (the extra twisted pair is needed for the signal ground).

Figure 20 illustrates how to connect a general four-wire network (a four-wire network actually contains 5
wires).

Figure 20: General Four-Wire Network Connection

Figure 21 illustrates how to connect a general two-wire network (a two-wire network actually contains 3
wires). Note that the PDA7485 and PDA8485 have DIP switches that allow for two-wire connections
without the need to externally wire the DO to the DI and the /DO to the /DI (see the converter section for
complete details).

Figure 21: General Two-Wire Network Connection

Find Quality Products Online at: [email protected]

48

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Select Menu (SElect)

The Select menu is used to select the signal input conditioner applied
to the input (linear or round horizontal tank), low-flow cutoff, and analog output programming. The multi­point linearization is part of the linear function selection.

Signal Input Conditioning (Functn)

The Function menu is used to select the signal input conditioner
applied to the input: linear or round horizontal tank volume calculation. Multi-point linearization is part of
the linear function selection.

Meters are set up at the factory for linear function with 2-point linearization. The linear function provides a
display that is linear with respect to the input signal.

Multi-Point Linearization (Linear)

Meters are set up at the factory for linear function with 2-point linearization. Up to 32 linearization points
can be selected for PV1 under the linear function. The multi-point linearization can be used to linearize
the display for non-linear signals such as those from level transmitters used to measure volume in odd­shaped tanks or to convert level to flow using weirs and flumes with complex exponent.

If the dual-scale level feature has been selected, the menus for PV1 & PV2 are enabled. PV2 can be
programmed with up to 8 linearization points.

49

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Round Horizontal Tank Linearization (rHt)

This function automatically calculates the volume in a round horizontal tank with flat ends. This option is
only available on PV2 since PV1 is the designated level indicator.

Set the display for the desired decimal point and engineering units before entering the round horizontal
tank function. Select units, inches or cm for the tank dimensions. Enter the diameter and the length in
inches and the results are calculated automatically in US gallons.

The meter can be scaled to display the volume in any engineering unit.

Note: After Scale is displayed continue pressing the Enter button until the meter completes the scaling of

the input and display values.

Changing the Volume from Gallons to Liters

In the above graphic, entering the 48" for the diameter and 120" for the length of the round horizontal
tank, the meter automatically calculates that the volume of the tank is 940.02 gallons.

1. Convert gallons to liters

1 US gallon = 3.7854 L

940.02 gal = 3558.4 L

2. Go to the Setup menu and change the decimal point to 1 decimal.

3. Go to the Program – Scale menu and press Enter until dis 2 is shown on the main display.

4. Press Enter and change the display 2 value to 3558.4.

5. The meter is now displaying the volume in liters.

Note: The display can be scaled to display the volume in any engineering units.

50

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

*If installed

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Low-Flow Cutoff (CutofF)

The low-flow cutoff feature allows the meter to be programmed so that the often-unsteady outputs from
level transmitters, or levels that read close to zero but do not reach zero due to setup constraints, may
display zero on the meter. The display will read zero when the display would be below the programmed
cutoff level value.

The cutoff value may be programmed from 0 to 999999. The meter will display zero below the cutoff
value. Programming the cutoff value to zero disables the cutoff feature.

Analog Output Programming (AoutPr)

The Analog Output Programming menu is used to program the behavior of the 4-20 mA output. The
following parameters and functions are programmed in this menu:

1. Source: Source for generating the 4-20 mA output (e.g. PV)

2. Overrange: Analog output value with display in overrange condition

3. Underrange: Analog output value with display in underrange condition

4. Break: Analog output value when loop break is detected

5. Max: Maximum analog output value allowed regardless of input

6. Min: Minimum analog output value allowed regardless of input

7. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output

Analog Output Source

The source for generating the 4-20 mA output may be assigned to the process variable, maximum or
minimum value reached by the process, one of the set points, or the Modbus PV input.

Analog Output Calibration

To perform the analog output calibration, it is recommended to use a milliamp meter with a resolution of
at least 0.1 µA to measure the output current. The values saved internally during this procedure are used
for scaling the 4-20 mA output in the Setup menu.

Programmable Function Keys User Menu (user)

The User menu allows the user to assign the front panel function keys F1, F2, and F3, the digital input F4
(a digital input located on the signal input connector), and up to eight additional digital inputs to access
most of the menus or to activate certain functions immediately (e.g. reset max & min, hold relay states,
etc.). This allows the meter to be greatly customized for use in specialized applications.

Up to eight digital outputs can be assigned to a number of actions and functions executed by the meter
(i.e. alarms, relay acknowledgement, reset max, min, or max & min, tare, and reset tare). The digital
outputs can be used to trigger external alarms or lights to indicate these specific events.

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

51

Display

Description

Rst Hi

Reset the stored maximum display
value

Rst Lo

Reset the stored minimum display
value

Rst HL

Reset the stored maximum &
minimum display values

tare

Capture tare and zero the display

Rst tr

Reset captured tare and resume
normal operation

relay

Directly access the relay menu

Set 1*

Directly access the set point menu
for relay 1 (*through 8)

Rly d

Disable all relays until a button
assigned to enable relays (Rly E)
is pressed

Rly E

Enable all relays to function as they
have been programmed

O Hold

Hold current relay states as they
are until a button assigned to

enable relays (Rly E) is pressed

d Hold

Hold the current display value
momentarily while the function key
or digital input is active. The
process value will continue to be
calculated in the background.

Ln1 Hi

Display maximum display value on
line 1

Ln1 Lo

Display minimum display value on
line 1

Ln1 HL

Display maximum & minimum
display values on line 1

Display

Description

Ln2 Hi

Display maximum display value on
line 2

Ln2 Lo

Display minimum display value on
line 2

Ln2 HL

Display maximum & minimum
display values on line 2

F On 1*

Force relay 1 (*through 4) into the
on state. This function is used in
conjunction with the digital inputs to
achieve interlock functionality. See
page 42 for details about interlock
relays.

Contrl

Directly access the control menu

disabl

Disable the selected function key or
digital I/O

AcH

Acknowledge all active relays that
are in a manual operation mode
such as auto-manual or latching

Reset

Directly access the reset menu

nmenu

Mimic the menu button functionality
(digital inputs only)

rigHt

Mimic the right arrow/F1 button
functionality (digital inputs only)

up

Mimic the up arrow/F2 button
functionality (digital inputs only)

Enter

Mimic the enter/F3 button
functionality (digital inputs only)

Alnm 1*

Provide indication when alarm 1
(*through 8) has been triggered
(digital outputs only)

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Function Keys & Digital I/O Available Settings

Refer to the following table for descriptions of each available function key or digital I/O setting.

Find Quality Products Online at: [email protected]

52

www.GlobalTestSupply.com

The meter is factory calibrated prior to shipment to read in

milliamps and volts depending on the input selection. The

calibration equipment is traceable to NIST standards.

Notes:

1. If meter is in operation and it is intended to accept only one input type
(e.g. 4-20 mA), recalibration of other input is not necessary.

2. Allow the meter to warm up for at least 15 minutes before performing the
internal source calibration procedure.

Input Range

Input 1 & Input 2 Span

4-20 mA

0.15 mA

10 VDC

0.01 VDC

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Internal Source Calibration (ICAL)

The use of calibrated signal sources is necessary to calibrate the internal source of the meter. The
meter’s internal source is what allows the user to scale the meter without applying a signal.

Check calibration of the meter at least every 12 months. Each input must be recalibrated separately.

The Internal calibration menu is part of the Advanced Features menu.

1. Press and hold the Menu button for three seconds to access the advanced features of the meter.

2. Press the Up arrow button to scroll to the Internal calibration menu (ICAL) and press Enter.

3. The meter displays either current calibration (C CAL) or voltage calibration (v CAL), according to the

input setup. Press Enter to start the calibration process.

Example of Internal Calibration for current input:

4. The meter displays low input current message (C lo). Apply the low input signal and press Enter. The

display flashes for a moment while the meter is accepting the low input signal.

5. After the display stops flashing, a number is displayed with the leftmost digit brighter than the rest.
The bright digit is the active digit that can be changed by pressing the Up
arrow button. Press the Right arrow button to move to the next digit.

6. Set the display value to correspond to the input signal being calibrated,
typically 4.000 mA.

7. The display moves to the high input calibration (C Hi). Apply the high
input signal and press Enter.

8. Set the display for the high input
calibration, in the same way as it
was set for the low input
calibration, typically 20.000 mA.

The graphic above shows the calibration of the current input. The
voltage input is calibrated in a similar way.

Tips:

• Low and high input signals can be any valid values within the range of the meter.

• Observe minimum input span requirements between input 1 and input 2.

• Low input should be less than high input signal.

Error Message (Error)

An error message indicates that the calibration or scaling process was not successful.
The error message might be caused by any of the following conditions:

1. Input signal is not connected to the proper terminals, or it is connected backwards.

2. Wrong signal selection in Setup menu.

3. Minimum input span requirements not maintained.

Minimum Input Span

The minimum input span is the minimum difference
between input 1 and input 2 signals required to complete
the calibration or scaling of the meter.

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

53

Button Symbol

Description

Press to enter or exit Programming Mode, view settings, or exit max/min readings

Press to reset max/min readings or other parameter/function assigned through the
User menu

Press to display max/min readings or other parameter/function assigned through
the User menu

Press to acknowledge relays or other parameters/function assigned through the
User menu

WARNING

Take caution when cleaning the window
glass as it may result in unintentional
SafeTouch button events. Only clean the
ProtEX-MAX when the system is safely shut
down, and inspect the ProtEX-MAX for
proper configuration prior to system restart.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Meter Operation

The meter is capable of accepting current (0-20 mA, 4-20 mA) and voltage signals (0-5 V, 1-5 V, 0-10 V, 
10 V) and displaying these signals in engineering units from -9FT11IN(15/16 or 7/8) - 99FT11IN(15/16 or 7/8) on
display line 1 and units from -99999 to 999999 on display line 2 (e.g. a 4-20 mA signal could be displayed
as 0FT0

The dual-line display can be customized by the user to operate in such a way as to satisfy a specific
application. Typically, the main display is used for the process variable; while the second display is used
for engineering units, custom legend, or set point indication.

The analog input can be scaled to display the process in two different scales; for example: with d-SCAL
enabled, the main display could indicate level in feet and inches and the second display could indicate the
volume in gallons.

Additionally, the meter can be set up to display the analog input in feet and inches on the main display and
the Modbus input on the second display. The relays and analog output can be programmed to operate from
the Modbus PV input.

Front Panel Buttons Operation

IN 0

/16 to 25FT0

IN 0

/16 on display line 1 and -50.000 to 50.000 on display line 2).

SafeTouch® Buttons

The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be
programmed and operated without removing the cover (and exposing the electronics) in a hazardous
area.

These buttons can be disabled for security by selecting DISABLE on the switch labeled NO-CONTACT
BUTTONS located on the connector board.

To actuate a button, press one finger to the glass directly over the marked button area. Then retract finger
more than three inches from the glass before pressing the next button. When the cover is removed, the
four mechanical buttons located next to the sensors are used. The sensors are disabled when a
mechanical button is pressed and will automatically be re-enabled after 60 seconds of inactivity.

The SafeTouch Buttons are designed to filter normal levels of ambient interference and to protect against
false triggering, however, it is recommended that the SafeTouch Buttons be disabled (slide switch to
LOCK) if there is an infrared interference source in line-of-sight to the display.

The SafeTouch Buttons are configured by default to duplicate the function of the front panel mechanical
pushbuttons associated with the integrated meter. The symbols by each SafeTouch button correspond to
a mechanical button as shown in the above table.

SafeTouch Button Tips:

• To the extent possible, install the
display facing away from sunlight,
windows, reflective objects and any
sources of infrared interference.

• Keep the glass window clean.

• Tighten the cover securely.

• Use a password to prevent tampering.

Find Quality Products Online at: [email protected]

54

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

F4 Operation

A digital input, F4, is standard on the meter. This digital input is programmed identically to function keys
F1, F2, and F3. The input is triggered with a contact closure to COM, or with an active low signal. During
operation, F4 operates according to the way it has been programmed in the Advanced Features – User
menu.

Maximum/Minimum Readings

The max & min readings (peak & valley) reached by the process can be displayed either continuously or
momentary:

1. Display briefly by assigning to the F1-F3 function keys or to the digital inputs in the User menu.

2. Display continuously by assigning either display to max/min through the Display menu.

Any of the F1-F3 function keys (buttons) and the digital inputs can be programmed to reset the max & min
readings. The meters are set at the factory to display the max reading by pressing the Up arrow/F2 button
and to use the Right arrow/F1 button to access the Reset menu.

To display max reading using function key with factory defaults:

1. Press Up arrow/F2 button to display maximum reading since the last reset/power-up.

2. To reset max/min press Right arrow/F1 button to access the Reset menu. The max & min displays
are reset to actual values.

3. Press Menu to exit max/min display reading.

To display max/min readings continuously:

Assign either display to Max (d Hi), Min (d Lo), or toggle between Max and Min (d HL) every 10
seconds.

55

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Troubleshooting

Due to the many features and functions of the meter, it’s possible that the setup of the meter does not
agree with what an operator expects to see. If the meter is not working as expected, refer to the
Diagnostics menu and consult the recommendations described below.

Diagnostics Menu (diag)

The Diagnostics menu is located in the Advanced Features menu, to access Diagnostics menu see
Advanced Features Menu, page 45.

This menu allows the user to test the functionality of all the meter LEDs, check the meter’s software and
version information, and erase the MeterView Pro software installation files from the meter. Press the
Enter button to view the settings and the Menu button to exit at any time.

For a description of the diagnostic messages, see Advanced Features Menu & Display Messages, page

45.

Determining Software Version

To determine the software version of a meter:

1. Go to the Diagnostics menu (diAG) and press Enter button.

2. Press Up arrow button and scroll to Information menu (Info).

3. Press Enter to access the software number (SFT) and version (UER) information. Write down the

information as it is displayed. Continue pressing Enter until all the information is displayed.

4. The meter returns to Run Mode after displaying all the settings.

Reset Meter to Factory Defaults

When the parameters have been changed in a way that is difficult to determine what’s happening, it might
be better to start the setup process from the factory defaults.

Instructions to load factory defaults:

1. Enter the Advanced Features menu. See Advanced Features Menu, page 45.

2. Press Up arrow to go to Diagnostics menu

3. Press and hold Right arrow for three seconds, press
Enter when display flashes reset.
Note: If Enter is not pressed within three seconds, the display returns to the Diagnostics menu.

4. The meter goes through an initialization sequence (similar as on power-up), and loads the factory
default settings.

Note: The dual-scale selection for some level applications (d-SCAL) is not reset to the single scale

factory default. This can be changed using the Setup – Input menu.

56

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Parameter

Display

Default Setting

Input type

Input

4-20 mA

Dual-scale feature

d-SCAL

No (Single scale)

Filter

filter

70

Bypass

bypass

0.2

Function

Functn

Linear

Number of points

No Pts

2

Programming

prog

Scale

Input 1

InP 1

4.000 mA

Display 1

Dis 1

4FT0IN 0/16

Input 2

InP 2

20.000 mA

Display 2

Dis 2

20

FT0IN 0

/16

Decimal point

dd.ddd

3 places

Cutoff value

CutofF

0.000 (disabled)

Display assignment

Dsplay

Display line 1 (Main)

Line 1

PV: Process variable

Display line 2

Line 2

Eng unit default= level

Display intensity

d-Inty

8

Relay 1 action

Act 1

Automatic

Relay 1 set point

Set 1

1

FT0IN 0

/16

Relay 1 reset point

RSt 1

0

FT6IN 0

/16

Relay 2 action

Act 2

Automatic

Relay 2 set point

Set 2

2

FT0IN 0

/16

Relay 2 reset point

RSt 2

1

FT6IN 0

/16

Relay 3 action

Act 3

Automatic

Relay 3 set point

Set 3

3

FT0IN 0

/16

Relay 3 reset point

RSt 3

2

FT6IN 0

/16

Relay 4 action

Act 4

Automatic

Relay 4 set point

Set 4

4

FT0IN 0

/16

Relay 4 reset point

RSt 4

3

FT6IN 0

/16

Fail-safe relay 1

Fls 1

Off

Fail-safe relay 2

Fls 2

Off

Fail-safe relay 3

Fls 3

Off

Fail-safe relay 4

Fls 4

Off

On delay relay 1

On 1

0.0 sec

Off delay relay 1

Off 1

0.0 sec

On delay relay 2

On 2

0.0 sec

Off delay relay 2

Off 2

0.0 sec

On delay relay 3

On 3

0.0 sec

Parameter

Display

Default Setting

Off delay relay 3

Off 3

0.0 sec

On delay relay 4

On 4

0.0 sec

Off delay relay 4

Off 4

0.0 sec

Loop break relay 1

ignore

Ignore

Loop break relay 2

ignore

Ignore

Loop break relay 3

ignore

Ignore

Loop break relay 4

ignore

Ignore

Display 1 analog out

Dis 1

4

FT0IN 0

/16

Output 1 value

Out 1

4.000 mA

Display 2 analog out

Dis 2

20

FT0IN 0

/16

Output 2 value

Out 2

20.000 mA

Source analog output

Source

Process Variable

Overrange output

O-rang

21.000 mA

Underrange output

u-rang

3.000 mA

Loop break output

break

1.000 mA

Maximum output

mAx

23.000 mA

Minimum output

min

1.000 mA

Slave ID (Address)

SlavId

247

Baud rate

baud

9600

Transmit delay

Tr dly

50 ms

Parity

Parity

Even

Byte-to-byte timeout

t-byt

010 (0.1 sec)

F1 function key

F1

Reset max & min

F2 function key

F2

Line 1: Max (Hi)

F3 function key

F3

Acknowledge relays

F4 function

F4

Acknowledge relays

Digital input 1

dI 1

Menu

Digital input 2

dI 2

Right arrow

Digital input 3

dI 3

Up arrow

Digital input 4

dI 4

Enter

Digital output 1

dO 1

Alarm 1

Digital output 2

dO 2

Alarm 2

Digital output 3

dO 3

Alarm 3

Digital output 4

dO 4

Alarm 4

Password 1

Pass 1

000000 (unlocked)

Password 2

Pass 2

000000 (unlocked)

Password 3

Pass 3

000000 (unlocked)

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Factory Defaults & User Settings

The following table shows the factory setting for most of the programmable parameters on the meter.

57

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

Symptom

Check/Action

SafeTouch buttons do not respond

If mechanical button was pushed. The SafeTouch buttons will be re­enabled automatically 60 seconds after the last button push.

If slide switch on connector board is in DISABLE position, switch to
ENABLE.

Strong direct sunlight may interfere with SafeTouch button operation. It is
recommended to operate the buttons by standing so as to block direct
sunlight.

Serial Communications Power LED
Indicator is off

1. Check modular cable connection

2. Check power to the device

If only the TX (or DATA IN) data
status LED is flashing when serial
communications attempted

1. Check serial cable

2. Check protocol selected on device

3. Check instrument address & baud rate

4. Check program address & baud rate

If both data status LEDs (TX and RX)
are off when trying to communicate

Remove all unnecessary cables and instruments from the bus. Try getting
the system to work with only one device (to ease troubleshooting) and then
expand the system one device at a time.

Communications slow

Increase the baud rate

Random communication errors

1. Increase the TX delay time

2. Decrease the baud rate

Power LED is off

1. Check modular cable connection

2. Check power to instrument

No display at all

Check power at power connector

Not able to change setup or
programming, Locd is displayed

Meter is password-protected, enter correct six-digit password to unlock

Meter displays error message during
calibration (Error)

1. Check signal connections

2. Check input selected in Setup menu

3. Check minimum input span requirements

Meter displays

1. 999999

2. -99999

1. Check input selected in Setup menu

2. Check corresponding signal at Signal connector

Display is unstable

1. Check input signal stability and value

2. Check display scaling vs. input signal

3. Check filter and bypass values (increase)

Display response is too slow

Check filter and bypass values

Display reading is not accurate

1. Check signal input conditioner selected: Linear, square root, etc.

2. Check scaling or calibration

Display does not respond to input
changes, reading a fixed number

Check display assignment, it might be displaying max, min, or set point.

Display alternates between

1. Hi and a number

2. Lo and a number

Press Menu to exit max/min display readings.
Relay operation is reversed

1. Check fail-safe in Setup menu

2. Check wiring of relay contacts

Relay and status LED do not
respond to signal

1. Check relay action in Setup menu

2. Check set and reset points

Flashing relay status LEDs

Relays in manual control mode or relay interlock switches opened.

If the display locks up or the meter
does not respond at all

Cycle the power to reboot the microprocessor.
Other symptoms not described above

Call Technical Support for assistance.

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Troubleshooting Tips

Note: Certain sequences of events can cause unexpected results. To solve these issues, it is best to start fresh from
factory defaults and map changes ahead of time, rather than at random.

Find Quality Products Online at: [email protected]

58

www.GlobalTestSupply.com

WARNINGS

• Installation and service should be performed only by trained service
personnel. Service requiring replacement of internal sub-components
must be performed at the factory.

• Disconnect from supply before opening enclosure. Keep cover tight
while circuits are alive. Conduit seals must be installed within 18"
(450mm) of the enclosure.

• Verify that the operating atmosphere of the instrument is consistent
with the appropriate hazardous locations certifications.

• If the instrument is installed in a high voltage environment and a fault
or installation error occurs, high voltage may be present on any lead

• Read all product labels completely and follow all instructions and
requirements listed on the labels for installation or service.

Figure 22: Enclosure Dimensions – Front View

Figure 23: Enclosure Dimensions – Side Cross

Section View

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

Service

If the enclosure is sound and undamaged, then only the internal electronics housing will need to be
returned to the factory for service. Contact the factory for RMA number and return instructions.

Mounting Dimensions

All units: inches (mm)

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

59

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

This Page Intentionally Left Blank

60

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

EU Declaration of Conformity

Issued in accordance with ISO/IEC 17050-1:2004 and ATEX Directive 2014/34/EU.

We,

Precision Digital Corporation
233 South Street
Hopkinton, MA 01748 USA

as the manufacturer, declare under our sole responsibility that the product(s),

Model PD8 ProtEX-MAX Series

to which this declaration relates, is in conformity with the European Union Directives shown below:

2014/35/EU Low Voltage Directive
2014/34/EU ATEX Directive
2014/30/EU EMC Directive
2011/65/EU RoHS Directive

This conformity is based on compliance with the application of harmonized or applicable technical
standards and, when applicable or required, a European Union notified body certification.

Standards:

EN 55022:2007 EN 61000-6-2:2005 EN 60079-0:2009 EN 61000-6-4:2007
EN 60079-1:2007 EN 61010-1:2001 EN 60079-31:2008 EN 61326:2006

The standards EN 55022:2007, EN 60079-0:2009, EN 60079-1:2007, EN 60079-31:2008, EN 61000-6­4:2007, EN 61010-1:2001, and EN 61326:2006 are no longer harmonized. The requirements of these
standards have been checked against the harmonized standard EN 55022:2010, EN 60079­0:2012+A11:2013, EN 60079-1:2014, EN 60079-31:2014, EN 61000-6-4:2007+A1:2011, EN 61010­1:2010, and EN 61326:2013 and there were no major technical changes affecting the latest technical
knowledge for the products listed above.

EC Type Examination Certificate: Sira 12ATEX1182

Product Markings: II 2 G D

Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Tamb = -40°C to +*°C (*T5 = 65°C, *T6 = 60°C)

ATEX Notified Body for EC Type Examination Certificate: Sira Certification Service, NB 0518

Unit 6, Hawarden Industrial Park
Hawarden, Deeside, CH5 3US, UK

ATEX Quality Assurance Notification No.: SIRA 10 ATEX M462

ATEX Notified Body for Quality Assurance: Sira Certification Service, NB 0518

Unit 6, Hawarden Industrial Park
Hawarden, Deeside, CH5 3US, UK

Signed for and on behalf of Precision Digital Corporation:

Name: Jeffrey Peters
Company: Precision Digital Corporation
Title: President
Date: 02/12/2018 Document No: DoC PD8 {021218}

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter Instruction Manual

How to Contact Precision Digital

• For Technical Support please

Call: [phone] or [phone]

Fax: [phone]

Email: [email protected]

• For Sales Support or to place an order please
contact your local distributor or

Call: [phone] or [phone]

Fax: [phone]

Email: [email protected]

• For the latest version of this manual please visit

www.predig.com

PRECISION DIGITAL CORPORATION

LIM8-6001_D

SFT109 Ver 4.000 & up

Find Quality Products Online at: [email protected]

www.GlobalTestSupply.com

12/18